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   PARAM MPI Communication Overheads Measurement Suites (P-COMS) (C-DAC MPI Benchmarks)  
 
P-COMS is set of MPI benchmarks that measure communication overheads on large message passing clusters (such as PARAM 10000, PARAM Padma). The benchmarks have been implemented using MPI (Message Passing Interface) standard.
Download P-COMS Software - version 1.1.3
Download User's Guide

The benchmarks measure the overhead time for MPI Point-to-Point Communication library calls, Collective Communication library calls, Collective Communication and Computation library calls for various message sizes ranging from 0 bytes to 10 Megabytes. This communication model is very simple and it is advantageous because it is platform independent. P-COMS can be used to compare the performance of various MPI library calls on different message passing clusters.

Important features of P-COMS are

  • Warm-up to reduce the overheads of buffer initialization

  • Automatic selection of processors from available pool of processors

  • Automatic detection of supported MPI calls, and automatic execution of all the benchmarks
    Single executable, Run-time arguments and Flexible ranges of message size (0 byte - 10 Megabytes)

  • Accurate measurement of overhead time of communication primitives with a precision of up to microseconds using MPI_Wtime routine

  • Graphical representation of results

Download

The P-COMS software is provided by C-DAC, India currently available for licensing. If you are an Indian governmental institute of higher studies and research, recognized by ministry of finance or a research laboratory having R&D recognition of department of scientific and Industrial research, government of India, or any institute primarily funded by any state government or federal /Central government of any country or a non-profit educational institution or a non-profit making charitable organization, registered under society acts, you may use this product, royalty free, if you agree to the Copyright terms and conditions. User will have to accept the terms and conditions of this software. If you agree to these terms, contact at webmaster@cdac.in with the following information:

  • that you agree with the terms and conditions of this license;
  • identification of the Indian governmental research institute or non-profit educational institution agreeing to this license
  • The contact name, address, phone number, fax number and email at your place of business.

Download P-COMS Software - version 1.1.3

Download User's Guide (P-COMS-v1.1.3.pdf Size: 271 KB)