Jonathan R. Madsen
c87e69e522
* Submitting jobs to cdash
* Fail on submit
* submit url env
* submit url env
* try passing submit url as arg
* fix submit url
* Updated default URL
* Add submissions for remaining ubuntu focal workflow jobs
* Replace g++ with gcc in dashboard build name
* Add --ctest-args to run-ci.sh
* Add cdash support for bionic, jammy, and opensuse workflows
* Decrease CTEST_CUSTOM_MAXIMUM_PASSED_TEST_OUTPUT_SIZE
* OMNITRACE_BUILD_CODECOV option
* Support code coverage in CDash script
* CI dyninst built with debug info
* Update ci-containers
- cron schedule moved 4 hours later to UTC+5
* Update implementation of config::configure_signal_handler
- using lambdas failed to compile with codecov flags
* Add codecov job to ubuntu focal workflow
* Fix support for --ctest-args in run-ci script
* Fix ubuntu workflows
* Fix quotation handling in run-ci script
* git safe directory for codecov
* New MPI examples
* Remove --stop-on-failure
* dynamic_library update
- find_library_path checks procfs maps
- invoke find_library_path with no additional args to resolve to mapped file
* RCCLP uses dynamic_library
* check if file exists for memory_map_files metadata
* Testing updates
- include new mpi examples in tests
- fix test labels
- test critical-trace exe
* Update MPI C examples tests (needed arg)
* Remove try/catch block from critical-trace
* Fix sampling max wait when shutting down
* Fix test env for critical-trace
* Fix settings for critical-trace
- disable time output: data is deterministic
- disable PID suffixes: not multiprocess
* Update critical-trace ctest
* Update critical-trace exe
- throw error if input cannot be opened
- throw error if input has no data
* Update lulesh example with more kokkos tools usage
* Fix tasking issue with critical_trace and roctracer
- were not setting pools to active
- also sync before critical_trace::get_entries
* Increase verbosity of critical-trace tests
* Update code coverage tests
- skip code coverage + preload
- code-coverage python example and test
* Remove duplication omnitrace.initialize function
* Skip python3.6 for ubuntu jammy
* Update MPI examples
- use MPI_Isend and MPI_Irecv
- explicitly use MPI_Bcast
* Update Formatting.cmake
- include C files in examples
* run-ci script does not check return of coverage
* mpi-allreduce link to libm
* Update ctest args in run-ci script
* Update dyninst submodule
- safety improvements in BinaryEdit::openResolvedLibraryName
* capture cmake error for ctest_coverage
[ROCm/rocprofiler-systems commit: 46b6db1a4c]
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
// Author: Wes Kendall
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// Copyright 2011 www.mpitutorial.com
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// This code is provided freely with the tutorials on mpitutorial.com. Feel
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// free to modify it for your own use. Any distribution of the code must
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// either provide a link to www.mpitutorial.com or keep this header intact.
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//
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// Ping pong example with MPI_Send and MPI_Recv. Two processes ping pong a
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// number back and forth, incrementing it until it reaches a given value.
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//
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#include <mpi.h>
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#include <stdio.h>
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#include <stdlib.h>
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int
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main(int argc, char** argv)
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{
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const int PING_PONG_LIMIT = 10;
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// Initialize the MPI environment
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MPI_Init(NULL, NULL);
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// Find out rank, size
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int world_rank;
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MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);
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int world_size;
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MPI_Comm_size(MPI_COMM_WORLD, &world_size);
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// We are assuming 2 processes for this task
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if(world_size != 2)
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{
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fprintf(stderr, "World size must be two for %s\n", argv[0]);
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MPI_Abort(MPI_COMM_WORLD, 1);
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}
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int ping_pong_count = 0;
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int partner_rank = (world_rank + 1) % 2;
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while(ping_pong_count < PING_PONG_LIMIT)
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{
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if(world_rank == ping_pong_count % 2)
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{
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// Increment the ping pong count before you send it
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ping_pong_count++;
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MPI_Send(&ping_pong_count, 1, MPI_INT, partner_rank, 0, MPI_COMM_WORLD);
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printf("%d sent and incremented ping_pong_count %d to %d\n", world_rank,
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ping_pong_count, partner_rank);
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}
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else
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{
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MPI_Recv(&ping_pong_count, 1, MPI_INT, partner_rank, 0, MPI_COMM_WORLD,
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MPI_STATUS_IGNORE);
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printf("%d received ping_pong_count %d from %d\n", world_rank,
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ping_pong_count, partner_rank);
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}
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}
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MPI_Finalize();
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}
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