HPL

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Trying to run HPL on markland cluster.
Trying to run HPL on markland cluster.
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CPUs are E5-2670 which are supposedly ~155GFLOPS per socket. [1]  Another source says 330 GFLOPS. [2] Let's be conservative and say 150GF per CPU.  Trying one run of xhpl with gotoblas, I get about 26GFLOPS for one socket, or about one sixth of the max theoretical.  Clearly not the best BLAS for this CPU.
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CPUs are E5-2670 which are supposedly ~155GFLOPS per socket. [1]  Another source says 330 GFLOPS for a 2S server. [2] Let's be conservative and say 150GF per CPU.  Trying one run of xhpl with gotoblas, I get about 26 GFLOPS for one socket, or about one sixth of the max theoretical.  Clearly not the best BLAS for this CPU.
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==Links==
==Links==
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* run with [http://www.open-mpi.org/doc/v1.4/man1/mpirun.1.php|mpirun]: http://www.rocksclusters.org/rocks-documentation/4.3/running-linpack.html
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* run with [http://www.open-mpi.org/doc/v1.4/man1/mpirun.1.php mpirun]: http://www.rocksclusters.org/rocks-documentation/4.3/running-linpack.html
* generate your HPL.dat: http://www.advancedclustering.com/faq/how-do-i-tune-my-hpldat-file.html
* generate your HPL.dat: http://www.advancedclustering.com/faq/how-do-i-tune-my-hpldat-file.html
* get the right BLAS for Sandy Bridge: http://software.intel.com/en-us/articles/performance-tools-for-software-developers-hpl-application-note/
* get the right BLAS for Sandy Bridge: http://software.intel.com/en-us/articles/performance-tools-for-software-developers-hpl-application-note/
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* AMD page: http://developer.amd.com/documentation/articles/pages/HPCHighPerformanceLinpack.aspx
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* Intel pre-compiled binaries: http://software.intel.com/en-us/articles/intel-math-kernel-library-linpack-download/
==references==
==references==
#http://forums.anandtech.com/showpost.php?p=33585052&postcount=1
#http://forums.anandtech.com/showpost.php?p=33585052&postcount=1
#http://novatte.com/blog/2012/03/how-to-calculate-theoretical-peak-performance-of-a-cpu-based-hpc-system/
#http://novatte.com/blog/2012/03/how-to-calculate-theoretical-peak-performance-of-a-cpu-based-hpc-system/

Latest revision as of 13:52, 3 August 2012

markland

Trying to run HPL on markland cluster.

CPUs are E5-2670 which are supposedly ~155GFLOPS per socket. [1] Another source says 330 GFLOPS for a 2S server. [2] Let's be conservative and say 150GF per CPU. Trying one run of xhpl with gotoblas, I get about 26 GFLOPS for one socket, or about one sixth of the max theoretical. Clearly not the best BLAS for this CPU.

Links

references

  1. http://forums.anandtech.com/showpost.php?p=33585052&postcount=1
  2. http://novatte.com/blog/2012/03/how-to-calculate-theoretical-peak-performance-of-a-cpu-based-hpc-system/
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