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Google Keyword Rankings for : cpu time gfortran
1
CPU_TIME(TIME) (Fortran 95) - IBM
https://www.ibm.com/docs/SSGH4D_15.1.0/com.ibm.xlf151.aix.doc/language_ref/cpu_time.html
Returns the CPU time, in seconds, taken by the current process and, possibly, all the child processes in all of the threads. A call to CPU_TIME will give ...
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https://www.ibm.com/docs/SSGH4D_15.1.0/com.ibm.xlf151.aix.doc/language_ref/cpu_time.html
Returns the CPU time, in seconds, taken by the current process and, possibly, all the child processes in all of the threads. A call to CPU_TIME will give ...
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2
CPU_TIME (The GNU Fortran Compiler)
https://gcc.gnu.org/onlinedocs/gfortran/CPU_005fTIME.html
Returns a REAL value representing the elapsed CPU time in seconds. This is useful for testing segments of code to determine execution time. If a time source is ...
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https://gcc.gnu.org/onlinedocs/gfortran/CPU_005fTIME.html
Returns a REAL value representing the elapsed CPU time in seconds. This is useful for testing segments of code to determine execution time. If a time source is ...
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3
CPU_TIME - Intel
https://www.intel.com/content/www/us/en/develop/documentation/fortran-compiler-oneapi-dev-guide-and-reference/top/language-reference/a-to-z-reference/c-to-d/cpu-time.html
Intel® Fortran Compiler Classic and Intel® Fortran Compiler ... Returns a processor-dependent approximation of the processor time in seconds ...
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https://www.intel.com/content/www/us/en/develop/documentation/fortran-compiler-oneapi-dev-guide-and-reference/top/language-reference/a-to-z-reference/c-to-d/cpu-time.html
Intel® Fortran Compiler Classic and Intel® Fortran Compiler ... Returns a processor-dependent approximation of the processor time in seconds ...
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4
Fortran intrinsic timing routines, which is better? cpu_time or ...
https://stackoverflow.com/questions/6878246/fortran-intrinsic-timing-routines-which-is-better-cpu-time-or-system-clock
cpu_time() usually has a resolution of about 0.01 second on Intel compatible CPUs. This means that a smaller time interval ...
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https://stackoverflow.com/questions/6878246/fortran-intrinsic-timing-routines-which-is-better-cpu-time-or-system-clock
cpu_time() usually has a resolution of about 0.01 second on Intel compatible CPUs. This means that a smaller time interval ...
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5
How to show the true wall time instead of cpu_time?
https://fortran-lang.discourse.group/t/how-to-show-the-true-wall-time-instead-of-cpu-time/2189
If the processor cannot provide a meaningful value for the time, ... Fortran intrinsic timing routines, which is better? cpu_time or system_clock.
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https://fortran-lang.discourse.group/t/how-to-show-the-true-wall-time-instead-of-cpu-time/2189
If the processor cannot provide a meaningful value for the time, ... Fortran intrinsic timing routines, which is better? cpu_time or system_clock.
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6
Time and Date Functions (Fortran Programming Guide)
https://docs.oracle.com/cd/E19957-01/805-4940/6j4m1u7pp/index.html
Library functions that return the time of day or elapsed CPU time vary from system to system. The following time functions are not supported directly in the Sun ...
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https://docs.oracle.com/cd/E19957-01/805-4940/6j4m1u7pp/index.html
Library functions that return the time of day or elapsed CPU time vary from system to system. The following time functions are not supported directly in the Sun ...
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7
TIMER - Compute Elapsed Time
https://people.math.sc.edu/Burkardt/f_src/timer/timer.html
TIMER is a directory of FORTRAN90 programs which examine methods for computing the elapsed CPU time of a part of a calculation.
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https://people.math.sc.edu/Burkardt/f_src/timer/timer.html
TIMER is a directory of FORTRAN90 programs which examine methods for computing the elapsed CPU time of a part of a calculation.
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8
Timing your Application
http://astroa.physics.metu.edu.tr/MANUALS/intel_ifc/mergedProjects/optaps_for/common/optaps_time_apps.htm
The Fortran intrinsic CPU_TIME can be used at selected points in the program to collect the CPU time between the start and end of the task to be timed.
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http://astroa.physics.metu.edu.tr/MANUALS/intel_ifc/mergedProjects/optaps_for/common/optaps_time_apps.htm
The Fortran intrinsic CPU_TIME can be used at selected points in the program to collect the CPU time between the start and end of the task to be timed.
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9
TIMER - Compute Elapsed Time
https://people.sc.fsu.edu/~jburkardt/f77_src/timer/timer.html
TIMER is a directory of FORTRAN77 programs which compute the elapsed CPU time or wallclock time of a part of a calculation.
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https://people.sc.fsu.edu/~jburkardt/f77_src/timer/timer.html
TIMER is a directory of FORTRAN77 programs which compute the elapsed CPU time or wallclock time of a part of a calculation.
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10
fortran, measure CPU-time in F77
http://computer-programming-forum.com/49-fortran/92cdf878badfd328.htm
Tim Prin #3 / 11. measure CPU-time in F77. Quote: >is there a way to measure CPU-time in F77 ? There was no standard way until f90 introduced CPU_TIME().
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http://computer-programming-forum.com/49-fortran/92cdf878badfd328.htm
Tim Prin #3 / 11. measure CPU-time in F77. Quote: >is there a way to measure CPU-time in F77 ? There was no standard way until f90 introduced CPU_TIME().
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11
CPU times measured with the Fortran intrinsic ... - ResearchGate
https://www.researchgate.net/figure/CPU-times-measured-with-the-Fortran-intrinsic-cpu-time-and-normalized-for-each-process-to_fig1_268391842
Download scientific diagram | CPU times measured with the Fortran intrinsic cpu time and normalized for each process to the compiled source code using ...
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https://www.researchgate.net/figure/CPU-times-measured-with-the-Fortran-intrinsic-cpu-time-and-normalized-for-each-process-to_fig1_268391842
Download scientific diagram | CPU times measured with the Fortran intrinsic cpu time and normalized for each process to the compiled source code using ...
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12
Timing a Fortran function - The Craft of Coding - WordPress.com
https://craftofcoding.wordpress.com/2017/03/31/timing-a-fortran-function/
How to time a Fortran function? Here's a Fortran program which times an execution of Ackermann's function. It uses two calls to Fortran's ...
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https://craftofcoding.wordpress.com/2017/03/31/timing-a-fortran-function/
How to time a Fortran function? Here's a Fortran program which times an execution of Ackermann's function. It uses two calls to Fortran's ...
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13
system_clock and processor-dependent behavior
https://groups.google.com/g/comp.lang.fortran/c/Iif-iCkig_Y/m/Hn8XykAYCwAJ
This is more obvious with CPU_TIME, where the elapsed cpu_time is typically updated only 64 times per second. In gFortran on windows, this reported clock rate ...
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https://groups.google.com/g/comp.lang.fortran/c/Iif-iCkig_Y/m/Hn8XykAYCwAJ
This is more obvious with CPU_TIME, where the elapsed cpu_time is typically updated only 64 times per second. In gFortran on windows, this reported clock rate ...
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14
CPU_TIME | Silverfrost Fortran Help
https://www.silverfrost.com/ftn95-help/intrin/cpu_time.aspx
TIME is a scalar value giving the processor time in seconds. A negative value denotes an error condition. Example. REAL TIME1, TIME2 CALL CPU_TIME(TIME1) !
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https://www.silverfrost.com/ftn95-help/intrin/cpu_time.aspx
TIME is a scalar value giving the processor time in seconds. A negative value denotes an error condition. Example. REAL TIME1, TIME2 CALL CPU_TIME(TIME1) !
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15
CPU time (Fortran) - myCompiler
https://www.mycompiler.io/view/4A8H9Ej
CPU time. mill1825 · 2 years ago. Fortran. Run Download Fork. program test_cpu_time. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. program test_cpu_time. integer :: i.
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https://www.mycompiler.io/view/4A8H9Ej
CPU time. mill1825 · 2 years ago. Fortran. Run Download Fork. program test_cpu_time. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. program test_cpu_time. integer :: i.
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16
How to measure the net time spent in a program? - narkive
https://comp.lang.fortran.narkive.com/2m59EH0W/how-to-measure-the-net-time-spent-in-a-program
Isn't "cpu_time" intended to give your the cpu time for your process? ... You might look at the nonstandard etime function in gfortran. It
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https://comp.lang.fortran.narkive.com/2m59EH0W/how-to-measure-the-net-time-spent-in-a-program
Isn't "cpu_time" intended to give your the cpu time for your process? ... You might look at the nonstandard etime function in gfortran. It
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17
CPU TIME
https://www.itl.nist.gov/div898/software/dataplot/refman1/auxillar/cpu_time.htm
If you want to measure the CPU time for a specific block of code, you typically enter the command at both the beginning and the end of the code ...
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https://www.itl.nist.gov/div898/software/dataplot/refman1/auxillar/cpu_time.htm
If you want to measure the CPU time for a specific block of code, you typically enter the command at both the beginning and the end of the code ...
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18
Fortran: Best way to time sections of your code?
https://scicomp.stackexchange.com/questions/6812/fortran-best-way-to-time-sections-of-your-code
Use a fortran intrinsic (as you have): This is probably the easiest, and generally ... This will give a line-by-line CPU time profile.
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https://scicomp.stackexchange.com/questions/6812/fortran-best-way-to-time-sections-of-your-code
Use a fortran intrinsic (as you have): This is probably the easiest, and generally ... This will give a line-by-line CPU time profile.
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19
Fortran Flag for CPU time - Reddit
https://www.reddit.com/r/fortran/comments/9vu0de/fortran_flag_for_cpu_time/
It is best to use the SYSTEM_CLOCKIt tells you the the time it take in terms of the CPU cycles that it uses. You can also use the CPU_TIME ...
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https://www.reddit.com/r/fortran/comments/9vu0de/fortran_flag_for_cpu_time/
It is best to use the SYSTEM_CLOCKIt tells you the the time it take in terms of the CPU cycles that it uses. You can also use the CPU_TIME ...
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20
Date and Time | Programming in Modern Fortran
https://cyber.dabamos.de/programming/modernfortran/date-and-time.html
The system_clock(count, count_rate, count_max) routine was introduced in Fortran 90 and returns the processor clock, the number of ticks per ...
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https://cyber.dabamos.de/programming/modernfortran/date-and-time.html
The system_clock(count, count_rate, count_max) routine was introduced in Fortran 90 and returns the processor clock, the number of ticks per ...
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21
Timing code — AMath 483/583, Spring 2013 1.0 documentation
https://faculty.washington.edu/rjl/classes/am583s2014/notes/timing.html
Using time does not allow you to examine how much CPU time different parts of the code required, for example. Fortran timing utilities¶. There ...
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https://faculty.washington.edu/rjl/classes/am583s2014/notes/timing.html
Using time does not allow you to examine how much CPU time different parts of the code required, for example. Fortran timing utilities¶. There ...
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22
CPU_TIME 計算CPU的時間Tutorial for Lahey Fortran - YouTube
https://www.youtube.com/watch?v=ZjlpLvhvtlc
Lahey Fortran 全傑 SoftHome
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https://www.youtube.com/watch?v=ZjlpLvhvtlc
Lahey Fortran 全傑 SoftHome
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23
Improving I/O Performance
https://www.cita.utoronto.ca/~merz/intel_f10b/main_for/mergedProjects/optaps_for/fortran/optaps_prg_io_f.htm
A dramatic reduction in CPU time without a corresponding improvement in I/O time. ... When accessing whole arrays, use the array name (Fortran array syntax) ...
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https://www.cita.utoronto.ca/~merz/intel_f10b/main_for/mergedProjects/optaps_for/fortran/optaps_prg_io_f.htm
A dramatic reduction in CPU time without a corresponding improvement in I/O time. ... When accessing whole arrays, use the array name (Fortran array syntax) ...
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24
Parallel Programming in Fortran
https://wvuhpc.github.io/Modern-Fortran/20-Parallel-Programming/index.html
Since around the 90s, Fortran designers understood that the era of programming for a single CPU will be abandoned very soon. At that time, vector machines ...
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https://wvuhpc.github.io/Modern-Fortran/20-Parallel-Programming/index.html
Since around the 90s, Fortran designers understood that the era of programming for a single CPU will be abandoned very soon. At that time, vector machines ...
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25
urbanjost/M_stopwatch: package for measuring cpu ... - GitHub
https://github.com/urbanjost/M_stopwatch
M_StopWatch is a Fortran 90 module for measuring execution time of program segments. M_StopWatch is designed to be a portable, easy-to-use means of measuring ...
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https://github.com/urbanjost/M_stopwatch
M_StopWatch is a Fortran 90 module for measuring execution time of program segments. M_StopWatch is designed to be a portable, easy-to-use means of measuring ...
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26
SPEC CPU®2017 Frequently Asked Questions
https://www.spec.org/cpu2017/Docs/faq.html
Why are several Fortran benchmarks failing to build, ... At this time, SPEC does not provide an uninstall utility for the suite as a whole.
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https://www.spec.org/cpu2017/Docs/faq.html
Why are several Fortran benchmarks failing to build, ... At this time, SPEC does not provide an uninstall utility for the suite as a whole.
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27
Sequential execution
http://www.fos.su.se/~sasha/mdynamix/MDX_manual/node23.html
... with exception of accounting cpu time which is substituted by a “dumb” subroutine ... This can be used on Linux or other systems with gfortran fortran.
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http://www.fos.su.se/~sasha/mdynamix/MDX_manual/node23.html
... with exception of accounting cpu time which is substituted by a “dumb” subroutine ... This can be used on Linux or other systems with gfortran fortran.
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28
Timing an OpenMP run using Fortran | Ben Jimenez
https://benjimenez.wordpress.com/2012/08/23/timing-an-openmp-run-using-fortran/
Note that cpu_time yields information about the CPU time (how long the CPU was working on your problem) and omp_get_wtime yields the wall clock ...
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https://benjimenez.wordpress.com/2012/08/23/timing-an-openmp-run-using-fortran/
Note that cpu_time yields information about the CPU time (how long the CPU was working on your problem) and omp_get_wtime yields the wall clock ...
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29
MPI_Time.f90 in trunk/00FlowSolve_PL/SRC – MODEL_IW
http://forge.ipsl.jussieu.fr/model_iw/browser/trunk/00FlowSolve_PL/SRC/MPI_Time.f90
6 ! and the ratio CPU/Elapsed of MPI programs. ! 7 ! ! 8 ! Usage : Insert a "USE MPI_TIMES" instruction inside each MPI ! 9 ! Fortran program unit to ...
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http://forge.ipsl.jussieu.fr/model_iw/browser/trunk/00FlowSolve_PL/SRC/MPI_Time.f90
6 ! and the ratio CPU/Elapsed of MPI programs. ! 7 ! ! 8 ! Usage : Insert a "USE MPI_TIMES" instruction inside each MPI ! 9 ! Fortran program unit to ...
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30
Special Compiler Options - Cornell Virtual Workshop
https://cvw.cac.cornell.edu/codeopt/compileroptsspecial
Intel icc or ifort, -O3 -xMIC-AVX512, -O3 -xCORE-AVX512 -qopt-zmm-usage=high. GNU gcc or gfortran, -O3 -march=knl, -O3 -march=skylake-avx512 ...
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https://cvw.cac.cornell.edu/codeopt/compileroptsspecial
Intel icc or ifort, -O3 -xMIC-AVX512, -O3 -xCORE-AVX512 -qopt-zmm-usage=high. GNU gcc or gfortran, -O3 -march=knl, -O3 -march=skylake-avx512 ...
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31
Best Practice Guide - AMD EPYC
https://prace-ri.eu/wp-content/uploads/Best-Practice-Guide_AMD.pdf
The x86 EPYC processor, designed by AMD, is a System-on-Chip (SoC) composed of up to 32 ... GNU compiler suite, gcc, gfortran, g++(version 7.2.0 and 8.1.0).
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https://prace-ri.eu/wp-content/uploads/Best-Practice-Guide_AMD.pdf
The x86 EPYC processor, designed by AMD, is a System-on-Chip (SoC) composed of up to 32 ... GNU compiler suite, gcc, gfortran, g++(version 7.2.0 and 8.1.0).
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32
GNU Fortran compiler - Geos-chem
http://wiki.seas.harvard.edu/geos-chem/index.php/GNU_Fortran_compiler
This selects the CPU to generate code for at compilation time by determining the processor type of the compiling machine. Using -march=native enables all ...
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http://wiki.seas.harvard.edu/geos-chem/index.php/GNU_Fortran_compiler
This selects the CPU to generate code for at compilation time by determining the processor type of the compiling machine. Using -march=native enables all ...
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33
Fortran Tip集: 移植性のある時間計測の方法
https://www.nag-j.co.jp/fortran/tips/tips_PortableWayToTime.html
計算コード ! call cpu_time( t2 ) print *, "cpu time:", t2-t1, "seconds." end program cputime 出力例： cpu time ...
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https://www.nag-j.co.jp/fortran/tips/tips_PortableWayToTime.html
計算コード ! call cpu_time( t2 ) print *, "cpu time:", t2-t1, "seconds." end program cputime 出力例： cpu time ...
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34
Fortran - Wikipedia
https://en.wikipedia.org/wiki/Fortran
Fortran is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing. Fortran ...
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https://en.wikipedia.org/wiki/Fortran
Fortran is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing. Fortran ...
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35
arXiv:2110.10151v1 [cs.MS] 18 Oct 2021
https://arxiv.org/pdf/2110.10151
only compiler at the time of this writing with accelerator ... OpenMP with nvfortran. gfortran, or ifort for multi-core CPU parallelism.
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https://arxiv.org/pdf/2110.10151
only compiler at the time of this writing with accelerator ... OpenMP with nvfortran. gfortran, or ifort for multi-core CPU parallelism.
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36
Fortran basics — Math/CS 471, Fall 2020
https://math.unm.edu/~motamed/Teaching/OLD/Fall20/HPSC/fortran.html
There are two useful built-in subroutines in Fortran: cpu_time and system_clock . ... Exercise. Write a Fortran code and measure the CPU time for n×n matrix- ...
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https://math.unm.edu/~motamed/Teaching/OLD/Fall20/HPSC/fortran.html
There are two useful built-in subroutines in Fortran: cpu_time and system_clock . ... Exercise. Write a Fortran code and measure the CPU time for n×n matrix- ...
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37
Accelerating Fortran DO CONCURRENT with GPUs and the ...
https://developer.nvidia.com/blog/accelerating-fortran-do-concurrent-with-gpus-and-the-nvidia-hpc-sdk/
NVIDIA HPC compilers deliver the performance you need on CPUs, ... OpenACC and CUDA programs can run several times faster on a single NVIDIA A100 GPU ...
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https://developer.nvidia.com/blog/accelerating-fortran-do-concurrent-with-gpus-and-the-nvidia-hpc-sdk/
NVIDIA HPC compilers deliver the performance you need on CPUs, ... OpenACC and CUDA programs can run several times faster on a single NVIDIA A100 GPU ...
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38
Will the Intel Fortran Compiler pak work with an AMD CPU ...
https://www.quora.com/Will-the-Intel-Fortran-Compiler-pak-work-with-an-AMD-CPU-Athlon-II
And it is highly improbable they would generate overly optimal code for processors of their direct competitor (however, the times of intentionally bad code ...
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https://www.quora.com/Will-the-Intel-Fortran-Compiler-pak-work-with-an-AMD-CPU-Athlon-II
And it is highly improbable they would generate overly optimal code for processors of their direct competitor (however, the times of intentionally bad code ...
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39
4.2. Using Fortran - The Visual Room
http://www.thevisualroom.com/06_fortran_use/fortran_use.html
CPU Time is proportional to n3 if using matrix multiplication, doubling n will multiply CPU time by 8 (although larger matrices may be affected by cache).
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http://www.thevisualroom.com/06_fortran_use/fortran_use.html
CPU Time is proportional to n3 if using matrix multiplication, doubling n will multiply CPU time by 8 (although larger matrices may be affected by cache).
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40
F2GPU: A General Fortran to GPU-Code Translator - GTC 2012
https://on-demand.gputechconf.com/gtc/2012/presentations/S0218-GTC2012-Fortran-GPU-Translator.pdf
300 Time Steps. Double Precision. 30. 48. 84. 151. Tesla M2050. Number of Domains. 191. 315. 1. 102. 136. 2. 15. 59. 68. 4. CPU/GPU. 8. Xeon X5670 (6).
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https://on-demand.gputechconf.com/gtc/2012/presentations/S0218-GTC2012-Fortran-GPU-Translator.pdf
300 Time Steps. Double Precision. 30. 48. 84. 151. Tesla M2050. Number of Domains. 191. 315. 1. 102. 136. 2. 15. 59. 68. 4. CPU/GPU. 8. Xeon X5670 (6).
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41
Making extreme computations possible with virtual machines
http://iopscience.iop.org/article/10.1088/1742-6596/762/1/012071/pdf
Figure 1: CPU times measured with the Fortran intrinsic cpu time and normalized for each process to the compiled source code using gfortran -O3.
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http://iopscience.iop.org/article/10.1088/1742-6596/762/1/012071/pdf
Figure 1: CPU times measured with the Fortran intrinsic cpu time and normalized for each process to the compiled source code using gfortran -O3.
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42
ETIME — Execution time subroutine (or function)
https://splichal.eu/scripts/sphinx/gfortran/_build/html/intrinsic-procedures/etime.html
ETIME(VALUES, TIME) returns the number of seconds of runtime since the ... TIME – The type shall be REAL(4) . ... CPU_TIME — CPU elapsed time in seconds.
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https://splichal.eu/scripts/sphinx/gfortran/_build/html/intrinsic-procedures/etime.html
ETIME(VALUES, TIME) returns the number of seconds of runtime since the ... TIME – The type shall be REAL(4) . ... CPU_TIME — CPU elapsed time in seconds.
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43
Flang: Developing an open source Fortran front-end for LLVM
https://developer.arm.com/-/media/Files/downloads/hpc/files/ARM-HPC-UG-SC16/ARM-HPC-UG-SC16-PGI.pdf
Flang Single-core Performance. SPEC CPU 2006 Fortran codes, all times in seconds, 1 Haswell core. PGI FORTRAN. 16.10. GFORTRAN. 6.1. FLANG DEV. LLVM 3.9.
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https://developer.arm.com/-/media/Files/downloads/hpc/files/ARM-HPC-UG-SC16/ARM-HPC-UG-SC16-PGI.pdf
Flang Single-core Performance. SPEC CPU 2006 Fortran codes, all times in seconds, 1 Haswell core. PGI FORTRAN. 16.10. GFORTRAN. 6.1. FLANG DEV. LLVM 3.9.
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44
Performance of Rank-2 Fortran 90 Pointer Arrays vs ...
https://www.osti.gov/pages/servlets/purl/1393339
calling arguments. The CPU time necessary to complete all 1000 calls was measured. The Fortran coding for each variant tested was simply:.
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https://www.osti.gov/pages/servlets/purl/1393339
calling arguments. The CPU time necessary to complete all 1000 calls was measured. The Fortran coding for each variant tested was simply:.
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45
The "Polyhedron Fortran Benchmarks" Suite
https://www.fortran.uk/fortran-compiler-comparisons/the-polyhedron-solutions-benchmark-suite/
Screen savers, and other tasks which may compete for CPU time should be disabled. the specification of the benchmark machine should be detailed, ...
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https://www.fortran.uk/fortran-compiler-comparisons/the-polyhedron-solutions-benchmark-suite/
Screen savers, and other tasks which may compete for CPU time should be disabled. the specification of the benchmark machine should be detailed, ...
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46
Setting up the computing environment - Rutgers Physics
http://www.physics.rutgers.edu/~haule/509/Intro0.pdf
•Fortran compiler, such as gfortran, or intel fortran (it is getting harder to install ... Warning: the installation of gcc will take a lot of time.
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http://www.physics.rutgers.edu/~haule/509/Intro0.pdf
•Fortran compiler, such as gfortran, or intel fortran (it is getting harder to install ... Warning: the installation of gcc will take a lot of time.
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47
1, Fortran - Rextester
https://rextester.com/JHNDRD87762
Show compiler warnings [ + ] Show input ; Compilation time: 0.12 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: ...
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https://rextester.com/JHNDRD87762
Show compiler warnings [ + ] Show input ; Compilation time: 0.12 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: ...
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48
Introduction to OpenMP
https://www-uxsup.csx.cam.ac.uk/courses/moved.OpenMP/notes_1.pdf
CPU time. Wall-clock time. OpenMP omp get wtime. C/C++ clock() time(). Fortran. CLOCK. SYSTEM CLOCK. C and C++ time() is very imprecise (it returns the time ...
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https://www-uxsup.csx.cam.ac.uk/courses/moved.OpenMP/notes_1.pdf
CPU time. Wall-clock time. OpenMP omp get wtime. C/C++ clock() time(). Fortran. CLOCK. SYSTEM CLOCK. C and C++ time() is very imprecise (it returns the time ...
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49
Can Fortran's `do concurrent' replace directives for ...
https://waccpd.org/wp-content/uploads/2021/11/ws_waccpd102s3-file5.pdf
CPUs and GPUs ... Note DIFFUSE is memory-bound so low speed-up over CPU cores is not unusual ... cross compiler/hardware compatibility at this time.
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https://waccpd.org/wp-content/uploads/2021/11/ws_waccpd102s3-file5.pdf
CPUs and GPUs ... Note DIFFUSE is memory-bound so low speed-up over CPU cores is not unusual ... cross compiler/hardware compatibility at this time.
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50
Multiprocessor Programming : TechWeb - Boston University
http://www.bu.edu/tech/support/research/software-and-programming/programming/multiprocessor/
scc1% gfortran myprogram.f <-- OpenMP not turned on scc1% gfortran ... These jobs are limited to 4 processors and 10 minutes of CPU time per processor.
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http://www.bu.edu/tech/support/research/software-and-programming/programming/multiprocessor/
scc1% gfortran myprogram.f <-- OpenMP not turned on scc1% gfortran ... These jobs are limited to 4 processors and 10 minutes of CPU time per processor.
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51
Beginner OpenMP FORTRAN help please | Physics Forums
https://www.physicsforums.com/threads/beginner-openmp-fortran-help-please.995978/
That's never a good thing. Also, cpu time measures net time in cpu for all the cores added together. So if 1 second of wall clock time was spent ...
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https://www.physicsforums.com/threads/beginner-openmp-fortran-help-please.995978/
That's never a good thing. Also, cpu time measures net time in cpu for all the cores added together. So if 1 second of wall clock time was spent ...
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52
CUDA Fortran acceleration for the finite-difference time ...
https://www.sciencedirect.com/science/article/abs/pii/S0010465513000118
Indeed, many of the GPU to CPU comparisons are made with high-end GPUs and mid-tier CPUs which can be misleading. The fact remains, however, that FDTD GPU ...
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https://www.sciencedirect.com/science/article/abs/pii/S0010465513000118
Indeed, many of the GPU to CPU comparisons are made with high-end GPUs and mid-tier CPUs which can be misleading. The fact remains, however, that FDTD GPU ...
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53
Simple Parallelization in Fortran: OpenMP
https://dannyvanpoucke.be/fortran-openmp1-en/
Where in 2005 you bought a single CPU with a high clock rate, ... even though you now have access to multiple times the processing power of ...
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https://dannyvanpoucke.be/fortran-openmp1-en/
Where in 2005 you bought a single CPU with a high clock rate, ... even though you now have access to multiple times the processing power of ...
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54
Fortran Compiler Comparisons - Polyhedron Software
https://polyhedron.com/?page_id=175
Here we only compare the run-times of computing intensive Fortran programs ... with an Intel® Core ™ i7-9700F CPU @ 3.00GHz (8 cores) and 16GB of RAM.
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https://polyhedron.com/?page_id=175
Here we only compare the run-times of computing intensive Fortran programs ... with an Intel® Core ™ i7-9700F CPU @ 3.00GHz (8 cores) and 16GB of RAM.
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55
Why physicists still use Fortran - Dan Elton
https://www.moreisdifferent.com/2015/07/16/why-physicsts-still-use-fortran/
This saves their students time, and also takes uncertainty out of the ... more efficient, if the array can be stored in the CPU's cache.
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https://www.moreisdifferent.com/2015/07/16/why-physicsts-still-use-fortran/
This saves their students time, and also takes uncertainty out of the ... more efficient, if the array can be stored in the CPU's cache.
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56
ncl-talk 2011 archive: Re: Increasing stacksize on Mac OSX
https://www.ncl.ucar.edu/Support/talk_archives/2011/1649.html
The ultimate cause of the NCL malloc problem was inside a Fortran function that was being called by my ... cpu time (seconds, -t) unlimited
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https://www.ncl.ucar.edu/Support/talk_archives/2011/1649.html
The ultimate cause of the NCL malloc problem was inside a Fortran function that was being called by my ... cpu time (seconds, -t) unlimited
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57
Replacing common extensions in production codes with ...
https://fortran.bcs.org/2020/AGM20_Shterenlikht.pdf
91 #ifndef __GFORTRAN__ ... returns elapsed cpu time since start of job (sec) ... Fortran system_clock() (use selected_int_kind(18) args on Cray CCE).
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https://fortran.bcs.org/2020/AGM20_Shterenlikht.pdf
91 #ifndef __GFORTRAN__ ... returns elapsed cpu time since start of job (sec) ... Fortran system_clock() (use selected_int_kind(18) args on Cray CCE).
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58
Using MPI with Fortran
https://curc.readthedocs.io/en/latest/programming/MPI-Fortran.html
In this tutorial we will be using the Intel Fortran Compiler, GCC, IntelMPI, ... #SBATCH --partition shas-testing #SBATCH --time 0:01:00 #SBATCH --output ...
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https://curc.readthedocs.io/en/latest/programming/MPI-Fortran.html
In this tutorial we will be using the Intel Fortran Compiler, GCC, IntelMPI, ... #SBATCH --partition shas-testing #SBATCH --time 0:01:00 #SBATCH --output ...
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59
HOWTO: Tune Performance | Ohio Supercomputer Center
https://www.osc.edu/resources/getting_started/howto/howto_tune_performance
It gives results for user time (CPU time spent running your program), system time ... GNU (gcc, g++, gfortran) is open source and universally available.
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https://www.osc.edu/resources/getting_started/howto/howto_tune_performance
It gives results for user time (CPU time spent running your program), system time ... GNU (gcc, g++, gfortran) is open source and universally available.
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60
LFortran Minimum Viable Product (MVP)
https://lfortran.org/blog/2021/09/lfortran-minimum-viable-product-mvp/
It can format AST back as Fortran code ( lfortran fmt ). ... time gfortran bench3.f90 0.74s user 0.06s system 94% cpu 0.842 total $ time ...
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https://lfortran.org/blog/2021/09/lfortran-minimum-viable-product-mvp/
It can format AST back as Fortran code ( lfortran fmt ). ... time gfortran bench3.f90 0.74s user 0.06s system 94% cpu 0.842 total $ time ...
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61
How to increase cpu usage [closed] - Ask Ubuntu
https://askubuntu.com/questions/432675/how-to-increase-cpu-usage
For my Thesis I want to write fortran program. I have a K53-Sm ASUS laptop with core i7 and 8Gig ram. When I run my program my CPU usage is ...
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https://askubuntu.com/questions/432675/how-to-increase-cpu-usage
For my Thesis I want to write fortran program. I have a K53-Sm ASUS laptop with core i7 and 8Gig ram. When I run my program my CPU usage is ...
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62
5. Fortran Enhancements for Multiprocessors
https://icl.utk.edu/~mucci/MPPopt/additional/MIPSF77_GUIDE/11chap5.pdf
“Writing Parallel Fortran” explains how to use compiler directives to ... This trade-off between response time and CPU usage can be adjusted with the.
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https://icl.utk.edu/~mucci/MPPopt/additional/MIPSF77_GUIDE/11chap5.pdf
“Writing Parallel Fortran” explains how to use compiler directives to ... This trade-off between response time and CPU usage can be adjusted with the.
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63
9.79. CPU_TIME - GNU Fortran 10 - W3cubDocs
https://docs.w3cub.com/gnu_fortran~10/cpu_005ftime
Description: Returns a REAL value representing the elapsed CPU time in seconds. · Standard: Fortran 95 and later · Class: Subroutine · Syntax: CALL CPU_TIME(TIME).
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https://docs.w3cub.com/gnu_fortran~10/cpu_005ftime
Description: Returns a REAL value representing the elapsed CPU time in seconds. · Standard: Fortran 95 and later · Class: Subroutine · Syntax: CALL CPU_TIME(TIME).
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64
Julia gets mentioned in an article about FORTRAN
https://discourse.julialang.org/t/julia-gets-mentioned-in-an-article-about-fortran/60605/59
a.out) Time 9.9999999999969905E-007 1.4111883712180107 ( gfortran -Ofast avx.f90 && ./a.out; ) 0.08s user 0.04s system 73% cpu 0.162 total.
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https://discourse.julialang.org/t/julia-gets-mentioned-in-an-article-about-fortran/60605/59
a.out) Time 9.9999999999969905E-007 1.4111883712180107 ( gfortran -Ofast avx.f90 && ./a.out; ) 0.08s user 0.04s system 73% cpu 0.162 total.
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65
Compilers — Fortran Programming Language
https://fortran-lang.org/compilers/
GNU Fortran Compiler (gfortran) is a mature free and open source compiler, part of the GNU Compiler Collection. OpenCoarrays is a library and compiler ...
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https://fortran-lang.org/compilers/
GNU Fortran Compiler (gfortran) is a mature free and open source compiler, part of the GNU Compiler Collection. OpenCoarrays is a library and compiler ...
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66
Best Fortran Compiler and OS for iTOUGH2 - TOUGH Forum
https://tough.forumbee.com/t/60hpvd7/best-fortran-compiler-and-os-for-itough2
The following files must be compiled and linked using a FORTRAN ... such as getting date and time, CPU time, calling an OS command, etc.).
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https://tough.forumbee.com/t/60hpvd7/best-fortran-compiler-and-os-for-itough2
The following files must be compiled and linked using a FORTRAN ... such as getting date and time, CPU time, calling an OS command, etc.).
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67
Fortran Timers
http://www.um.es/gmar/staff/gomez/computation/2016/06/28/timers.html
I wrote a very simple Fortran module to estimate the time elapsed between two lines of a program. It is very basic but allows fast and dirty ...
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http://www.um.es/gmar/staff/gomez/computation/2016/06/28/timers.html
I wrote a very simple Fortran module to estimate the time elapsed between two lines of a program. It is very basic but allows fast and dirty ...
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68
NTCC PORTLIB
https://w3.pppl.gov/ntcc/Port/
PortLib - Fortran Portability Library. FPreProc - Fortran Pre-Processor. ... access to environment variables or VMS logical names, elapsed cpu time, ...
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https://w3.pppl.gov/ntcc/Port/
PortLib - Fortran Portability Library. FPreProc - Fortran Pre-Processor. ... access to environment variables or VMS logical names, elapsed cpu time, ...
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69
Assignment 7: FORTRAN
https://jick.net/p210/a/2010/a07/
One weakness of scripted languages is that the computer's CPU has to interpret the instructions before it can execute them. This takes time, so if you want ...
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https://jick.net/p210/a/2010/a07/
One weakness of scripted languages is that the computer's CPU has to interpret the instructions before it can execute them. This takes time, so if you want ...
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70
[SOLVED] - AMD with Intel Fortran compiler?
https://forums.tomshardware.com/threads/amd-with-intel-fortran-compiler.3612181/
While Intel DOES have some CPUs that can compete, they are more pricey than ... so I'm seriously looking at the AMD option this time around.
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https://forums.tomshardware.com/threads/amd-with-intel-fortran-compiler.3612181/
While Intel DOES have some CPUs that can compete, they are more pricey than ... so I'm seriously looking at the AMD option this time around.
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71
General Fortran optimizations guide
https://www.umr-cnrm.fr/gmapdoc/IMG/pdf/general_fortran_optimization_guide_manual.pdf
Access Memory is faster, but its access from the CPU is limited by the bandwidth of the memory ... off the cache what has not been accessed for a long time.
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https://www.umr-cnrm.fr/gmapdoc/IMG/pdf/general_fortran_optimization_guide_manual.pdf
Access Memory is faster, but its access from the CPU is limited by the bandwidth of the memory ... off the cache what has not been accessed for a long time.
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72
Foundry (which is about 10 times more powerful than Forge)
http://www.mst.edu/~sgao/foundry
Most Fortran codes compiled on Forge (which runs the Red Hat Linux ... You can run jobs that do not require a lot of CPU time on the login node such as:
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http://www.mst.edu/~sgao/foundry
Most Fortran codes compiled on Forge (which runs the Red Hat Linux ... You can run jobs that do not require a lot of CPU time on the login node such as:
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73
Q&A from Excellerat webinar on Modern Fortran , 2021, May 4th.
https://cerfacs.fr/coop/webinar-modern-fortran
Many developers rely on the Fortran programming language, ... then “tune” your parallel code to a GPU/CPU machine with time and sweat.
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https://cerfacs.fr/coop/webinar-modern-fortran
Many developers rely on the Fortran programming language, ... then “tune” your parallel code to a GPU/CPU machine with time and sweat.
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74
Working parallel installation using python/gfortran in Windows
http://www.opentelemac.org/index.php/community-old/forum4/2-windows-version/6009-working-parallel-installation-using-python-gfortran-in-windows
I've remarked than under linux, the processor are used at 100 % of their capacities. Under windows, the calculation only uses 10 % of the processors capacities ...
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http://www.opentelemac.org/index.php/community-old/forum4/2-windows-version/6009-working-parallel-installation-using-python-gfortran-in-windows
I've remarked than under linux, the processor are used at 100 % of their capacities. Under windows, the calculation only uses 10 % of the processors capacities ...
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75
system_clock in Fortran Wiki
https://fortranwiki.org/fortran/show/system_clock
system_clock lets you measure durations of time with the precision of the ... values based on the current value of the processor clock.
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https://fortranwiki.org/fortran/show/system_clock
system_clock lets you measure durations of time with the precision of the ... values based on the current value of the processor clock.
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76
AMD EPYC™ 7xx2-series Processors Compiler Options Quick ...
https://developer.amd.com/wordpress/media/2020/04/Compiler%20Options%20Quick%20Ref%20Guide%20for%20AMD%20EPYC%207xx2%20Series%20Processors.pdf
Enable Link Time Optimization -flto. Enable unrolling ... AOCC compiler (with Flang - Fortran Front-End) ... GNU compiler collection (gcc, g++, gfortran).
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https://developer.amd.com/wordpress/media/2020/04/Compiler%20Options%20Quick%20Ref%20Guide%20for%20AMD%20EPYC%207xx2%20Series%20Processors.pdf
Enable Link Time Optimization -flto. Enable unrolling ... AOCC compiler (with Flang - Fortran Front-End) ... GNU compiler collection (gcc, g++, gfortran).
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77
GNU Fortran 8 documentation - DevDocs
https://devdocs.io/gnu_fortran~8/
GNU Fortran 8.4.0 API documentation with instant search, offline support, ... 9.78 COUNT — Count function · 9.79 CPU_TIME — CPU elapsed time in seconds ...
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https://devdocs.io/gnu_fortran~8/
GNU Fortran 8.4.0 API documentation with instant search, offline support, ... 9.78 COUNT — Count function · 9.79 CPU_TIME — CPU elapsed time in seconds ...
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78
efficient summation - Fortran - Tek-Tips
https://www.tek-tips.com/viewthread.cfm?qid=1643770
I am programming using fortran 90 (gfortran as a compiler). ... an algorithm is always the best way to reduce the CPU time consumption, ...
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https://www.tek-tips.com/viewthread.cfm?qid=1643770
I am programming using fortran 90 (gfortran as a compiler). ... an algorithm is always the best way to reduce the CPU time consumption, ...
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79
Quick benchmarking AHA code - The AHA Model
https://ahamodel.uib.no/quick-benchmarking-aha-code.html
All systems are running on Intel CPUs; Maximum compiler optimisation (O3). Build options for ifort and gfortran : ifort -sox -parallel -O3 ...
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https://ahamodel.uib.no/quick-benchmarking-aha-code.html
All systems are running on Intel CPUs; Maximum compiler optimisation (O3). Build options for ifort and gfortran : ifort -sox -parallel -O3 ...
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80
Chapter 6. Compiling and Debugging Parallel Fortran
https://techpubs.jurassic.nl/manuals/0630/developer/F77_PG/sgi_html/ch06.html
After your program has executed successfully on a single processor, ... This determination occurs each time the task starts; the number of threads is not ...
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https://techpubs.jurassic.nl/manuals/0630/developer/F77_PG/sgi_html/ch06.html
After your program has executed successfully on a single processor, ... This determination occurs each time the task starts; the number of threads is not ...
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81
Comparison of FORTRAN and C - Ibiblio
https://www.ibiblio.org/pub/languages/fortran/ch1-2.html
Dr. John Prentice Fortran 90 as a language of choice for science students At ... the basic mathematical primitives will take up unnecessary CPU time when ...
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https://www.ibiblio.org/pub/languages/fortran/ch1-2.html
Dr. John Prentice Fortran 90 as a language of choice for science students At ... the basic mathematical primitives will take up unnecessary CPU time when ...
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82
Fortran Tests in the LLVM Test Suite — The Flang Compiler
https://flang.llvm.org/docs/FortranLLVMTestSuite.html
Running the LLVM test-suite with Fortran; Running the SPEC CPU 2017 ... We recommend that first-time users read through LLVM Test Suite Guide which ...
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https://flang.llvm.org/docs/FortranLLVMTestSuite.html
Running the LLVM test-suite with Fortran; Running the SPEC CPU 2017 ... We recommend that first-time users read through LLVM Test Suite Guide which ...
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83
Fortran, APL - Hyperpolyglot
https://hyperpolyglot.org/fortran
gfortran --version, $ apl --version ... are identifiers case sensitive, no; Fortran 77 and earlier required all caps, yes ... cpu usage, real t1, t2
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https://hyperpolyglot.org/fortran
gfortran --version, $ apl --version ... are identifiers case sensitive, no; Fortran 77 and earlier required all caps, yes ... cpu usage, real t1, t2
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84
Getting started - LESGO by lesgo-jhu
https://lesgo.me.jhu.edu/start.html
LESGO has been successfully compiled with GFortran and Intel® Fortran. ... This information includes time step information, CPU time, velocity divergence, ...
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https://lesgo.me.jhu.edu/start.html
LESGO has been successfully compiled with GFortran and Intel® Fortran. ... This information includes time step information, CPU time, velocity divergence, ...
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85
Python NumPy and Numba, MATLAB, and Fortran
https://jekel.me/2017/Python-with-Numba-faster-than-fortran/
Below you'll see the mean run times in seconds between gfortran -O2 and the single threaded Python Numba. CPU, array elements, gfortran -O2 (s) ...
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https://jekel.me/2017/Python-with-Numba-faster-than-fortran/
Below you'll see the mean run times in seconds between gfortran -O2 and the single threaded Python Numba. CPU, array elements, gfortran -O2 (s) ...
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86
Running CYMA2DV with gfortran compiler on Linux system
https://idoc.ias.u-psud.fr/system/files/README_CYMA2DV_en.pdf
fort.8 (CPU time). • The folder results contains the output files corresponding to a test case to be able to check if your results are good.
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https://idoc.ias.u-psud.fr/system/files/README_CYMA2DV_en.pdf
fort.8 (CPU time). • The folder results contains the output files corresponding to a test case to be able to check if your results are good.
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87
IS FORTRAN STILL RELEVANT? COMPARING FORTRAN ...
https://airccse.org/journal/ijsea/papers/5314ijsea03.pdf
2.1 of [12]) and nanoTime() in Java [20]. The runtime shown in Figures 5 and 6 is the CPU time in milliseconds to render each image for generating the animation ...
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https://airccse.org/journal/ijsea/papers/5314ijsea03.pdf
2.1 of [12]) and nanoTime() in Java [20]. The runtime shown in Figures 5 and 6 is the CPU time in milliseconds to render each image for generating the animation ...
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88
UG3.2: MARCONI100 UserGuide - SCAI - User Support - Wiki
https://wiki.u-gov.it/confluence/display/SCAIUS/UG3.2%3A+MARCONI100+UserGuide
A time limit of 10 cpu-minutes for processes running on login nodes has been ... The XL compiler family offers C, C++, and Fortran compilers ...
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https://wiki.u-gov.it/confluence/display/SCAIUS/UG3.2%3A+MARCONI100+UserGuide
A time limit of 10 cpu-minutes for processes running on login nodes has been ... The XL compiler family offers C, C++, and Fortran compilers ...
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89
Time a function - Rosetta Code
https://rosettacode.org/wiki/Time_a_function
Task Write a program which uses a timer (with the least granularity available on your system) to time how long a function takes to execute.
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https://rosettacode.org/wiki/Time_a_function
Task Write a program which uses a timer (with the least granularity available on your system) to time how long a function takes to execute.
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90
Re: FLUKA2011.2.10 64 bit installation. - fluka.org
https://www.fluka.org/FLUKA/web_archive/earchive/new-fluka-discuss/4443.html
this 64 bit version of FLUKA is based on the gfortran compiler. ... test_general-A001.out: Average CPU time used to follow a primary ...
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https://www.fluka.org/FLUKA/web_archive/earchive/new-fluka-discuss/4443.html
this 64 bit version of FLUKA is based on the gfortran compiler. ... test_general-A001.out: Average CPU time used to follow a primary ...
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91
Fortran中的time子程序比较_za36mize的博客
https://blog.csdn.net/za36mize/article/details/78628990
对Fortran中的几种调用时间的子程序（CPU_TIME，SYSTEM_CLOCK ... CPU_TIME——Returns a REAL value representing the elapsed CPU time in seconds.
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https://blog.csdn.net/za36mize/article/details/78628990
对Fortran中的几种调用时间的子程序（CPU_TIME，SYSTEM_CLOCK ... CPU_TIME——Returns a REAL value representing the elapsed CPU time in seconds.
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92
MFIX results sensitivity to Fortran compilers
https://mfix.netl.doe.gov/doc/mfix-archive/mfix_current_documentation/MFIX_results_sensitivity_to_Fortran_compilers.pdf
comparison of the CPU time is shown in Figure 1.6. For optimized runs, the INTEL compilers provided a slightly better performance than the ...
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https://mfix.netl.doe.gov/doc/mfix-archive/mfix_current_documentation/MFIX_results_sensitivity_to_Fortran_compilers.pdf
comparison of the CPU time is shown in Figure 1.6. For optimized runs, the INTEL compilers provided a slightly better performance than the ...
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93
Fortran on a Mac - Macs in Chemistry
https://www.macinchem.org/reviews/fortran/fortran.php
PGI compilers deliver world-class multicore CPU performance and accelerator programming features that can dramatically increase the performance of applications ...
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https://www.macinchem.org/reviews/fortran/fortran.php
PGI compilers deliver world-class multicore CPU performance and accelerator programming features that can dramatically increase the performance of applications ...
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94
Performance Comparison – Fortran Compilers on AMD - Absoft
https://www.absoft.com/wp-content/uploads/2015/09/Performance_Comparison_Linux_2010a.pdf
The charts below reprint the Polyhedron Fortran Benchmark results as calculated and published by Polyhedron Ltd. UK in 2010. The benchmarks compare time in ...
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https://www.absoft.com/wp-content/uploads/2015/09/Performance_Comparison_Linux_2010a.pdf
The charts below reprint the Polyhedron Fortran Benchmark results as calculated and published by Polyhedron Ltd. UK in 2010. The benchmarks compare time in ...
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95
gcc: fatal error: killed signal terminated program cc1
http://ambafrance.org.br/99kip/viewtopic.php?id=gcc%3A-fatal-error%3A-killed-signal-terminated-program-cc1
Created attachment 358288 screen shot of top showing memory usage, CPU load, and elapsed time Description of problem: I downloaded the source for sage 4.4.1 ...
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http://ambafrance.org.br/99kip/viewtopic.php?id=gcc%3A-fatal-error%3A-killed-signal-terminated-program-cc1
Created attachment 358288 screen shot of top showing memory usage, CPU load, and elapsed time Description of problem: I downloaded the source for sage 4.4.1 ...
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