This is from Chapter 2 of Parallel and High Performance Computing, Robey and Zamora, Manning Publications, available at http://manning.com

The book may be obtained at http://www.manning.com/?a_aid=ParallelComputingRobey

Copyright 2019-2021 Robert Robey, Yuliana Zamora, and Manning Publications Emails: [email protected], [email protected]

See License.txt for licensing information.

See README.osx, README.linux and soon README.win for MPI and cmake installation instructions

See README.ndiff for instructions to install ndiff. A copy of the ndiff tar file is also included as a backup to getting it from the ndiff website. -- check that the ndiff executable is in the path with 'which ndiff'

Numdiff is an alternative program that performs the same function. It is at https://www.nongnu.org/numdiff/

Valgrind needs to be installed for the last example.

Requires CMake, CTest, and ndiff

Change into the Listing1 directory

Run the test with

  cd Listing1
  mkdir build
  cd build
  cmake ..
  make
  make test
     or
  ctest

To see the output when the test fails:

  ctest --output-on-failure

If the test does not run properly, try invoking it manually with

  sh mympiapp.ctest

You should get some results like the following.

  Running tests...
  Test project /Users/brobey/Programs/RunDiff
      Start 1: mpitest.ctest
  1/1 Test #1: mpitest.ctest ....................   Passed   30.24 sec

  100% tests passed, 0 tests failed out of 1

  Total Test time (real) =  30.24 sec

This test is based on the sleep function and timers, so it may or may not pass. Test results are in Testing/Temporary/*

Requires CMake and CTest

Change into the Listing2 directory

Run the test with

  cd Listing2
  mkdir build
  cd build
  cmake ..
  make
  ctest -R commit
     or
  make commit_tests

Requires Valgrind and a C99 standard C compiler

Change into the Listing3 directory

Run the valgrind test with

  cd Listing3
  make
  valgrind --leak-check=full ./test 2