OpenMP*

Courseware - Software Processes

  • Software life-cycle and process models
  • Software process capability maturity models
  • Approaches to process improvement
  • Process assessment models
  • Software process measurements

 

 

CSE445/598 Project on Multithreading and Multi-Core Processing (ASU)

 

 

Material Type:

  • Professores
  • Estudantes
  • OpenMP*
  • Software Engineering
  • Software Processes
  • Multithreading
  • multicore
  • distributed
  • Service
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  • soap
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  • OpenMP not using all processors

    I am trying to use MKL libraries and OpenMP in a MSVS C++ application on Windows7. The application shows affinity for all 24 processors (2 nodes, 6 processors, HyperThreaded). omp_get_num_procs() also shows 24 processors.  When I run the program only 1 node and 6 processors are accessed. This is confirmed  when I use "KMP_AFFINITY=verbose,none". It ouputs "OMP: Info #179: KMP_AFFINITY: 1 packages x 6 cores/pkg x 1 threads/core (6 total cores)".  I get no compiler or linker complaints.

    Intel® Parallel Studio XE 2015 Update 2 Cluster Edition Readme

    The Intel® Parallel Studio XE 2015 Update 2 Cluster Edition for Linux* and Windows* combines all Intel® Parallel Studio XE and Intel® Cluster Tools into a single package. This multi-component software toolkit contains the core libraries and tools to efficiently develop, optimize, run, and distribute parallel applications for clusters with Intel processors.  This package is for cluster users who develop on and build for IA-32 and Intel® 64 architectures on Linux* and Windows*, as well as customers running over the Intel® Xeon Phi™ coprocessor on Linux*. It contains:

  • Apple OS X*
  • Linux*
  • Microsoft Windows* (XP, Vista, 7)
  • Microsoft Windows* 8
  • Servidor
  • C/C++
  • Fortran
  • Intel® Parallel Studio XE Cluster Edition
  • Interface de transferência de mensagens
  • OpenMP*
  • Computação em nuvem
  • Using L1/L2 cache as a scratchpad memory

    Dear all,

    Explicitly cache control is a one of important feature in Xeonphi (MIC). How could I use the L1 or L2 as scratchpad memory and also sharing them data between the cores?

    In addition,  is there any way to hack the MESI state of the cache line in the distributed tag directory (DTD)? 

    Thanks in advance.

    Regards

    Assine o OpenMP*