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Merge pull request #686 from ajocksch/benchmarks/osu_allreduce
[test] Add OSU Allreduce test
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,17 @@ | ||
| EXECUTABLE := osu_allreduce | ||
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| all: $(EXECUTABLE) | ||
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| SRCS += osu_util.c \ | ||
| osu_allreduce.c | ||
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| OBJS := $(SRCS:.c=.o) | ||
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| $(OBJS): | ||
| $(CC) $(CPPFLAGS) $(CFLAGS) -I. -o $(@) -c $(@:.o=.c) | ||
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| $(EXECUTABLE): $(OBJS) | ||
| $(CC) $(CPPFLAGS) $(CFLAGS) -o $(@) $(OBJS) $(LDFLAGS) | ||
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| clean: | ||
| rm -f $(OBJS) $(EXECUTABLE) |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,143 @@ | ||
| #define BENCHMARK "OSU MPI%s Allreduce Latency Test" | ||
| /* | ||
| * Copyright (C) 2002-2018 the Network-Based Computing Laboratory | ||
| * (NBCL), The Ohio State University. | ||
| * | ||
| * Contact: Dr. D. K. Panda (panda@cse.ohio-state.edu) | ||
| * | ||
| * For detailed copyright and licensing information, please refer to the | ||
| * copyright file COPYRIGHT in the top level OMB directory. | ||
| */ | ||
| #include <osu_util.h> | ||
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| int main(int argc, char *argv[]) | ||
| { | ||
| int i, numprocs, rank, size; | ||
| double latency = 0.0, t_start = 0.0, t_stop = 0.0; | ||
| double timer=0.0; | ||
| double avg_time = 0.0, max_time = 0.0, min_time = 0.0; | ||
| float *sendbuf, *recvbuf; | ||
| int po_ret; | ||
| size_t bufsize; | ||
| options.bench = COLLECTIVE; | ||
| options.subtype = LAT; | ||
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| set_header(HEADER); | ||
| set_benchmark_name("osu_allreduce"); | ||
| po_ret = process_options(argc, argv); | ||
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| if (PO_OKAY == po_ret && NONE != options.accel) { | ||
| if (init_accel()) { | ||
| fprintf(stderr, "Error initializing device\n"); | ||
| exit(EXIT_FAILURE); | ||
| } | ||
| } | ||
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| MPI_CHECK(MPI_Init(&argc, &argv)); | ||
| MPI_CHECK(MPI_Comm_rank(MPI_COMM_WORLD, &rank)); | ||
| MPI_CHECK(MPI_Comm_size(MPI_COMM_WORLD, &numprocs)); | ||
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| switch (po_ret) { | ||
| case PO_BAD_USAGE: | ||
| print_bad_usage_message(rank); | ||
| MPI_CHECK(MPI_Finalize()); | ||
| exit(EXIT_FAILURE); | ||
| case PO_HELP_MESSAGE: | ||
| print_help_message(rank); | ||
| MPI_CHECK(MPI_Finalize()); | ||
| exit(EXIT_SUCCESS); | ||
| case PO_VERSION_MESSAGE: | ||
| print_version_message(rank); | ||
| MPI_CHECK(MPI_Finalize()); | ||
| exit(EXIT_SUCCESS); | ||
| case PO_OKAY: | ||
| break; | ||
| } | ||
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| if(numprocs < 2) { | ||
| if (rank == 0) { | ||
| fprintf(stderr, "This test requires at least two processes\n"); | ||
| } | ||
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| MPI_CHECK(MPI_Finalize()); | ||
| exit(EXIT_FAILURE); | ||
| } | ||
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| if (options.max_message_size > options.max_mem_limit) { | ||
| if (rank == 0) { | ||
| fprintf(stderr, "Warning! Increase the Max Memory Limit to be able to run up to %ld bytes.\n" | ||
| "Continuing with max message size of %ld bytes\n", | ||
| options.max_message_size, options.max_mem_limit); | ||
| } | ||
| options.max_message_size = options.max_mem_limit; | ||
| } | ||
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| options.min_message_size /= sizeof(float); | ||
| if (options.min_message_size < MIN_MESSAGE_SIZE) { | ||
| options.min_message_size = MIN_MESSAGE_SIZE; | ||
| } | ||
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| bufsize = sizeof(float)*(options.max_message_size/sizeof(float)); | ||
| if (allocate_memory_coll((void**)&sendbuf, bufsize, options.accel)) { | ||
| fprintf(stderr, "Could Not Allocate Memory [rank %d]\n", rank); | ||
| MPI_CHECK(MPI_Abort(MPI_COMM_WORLD, EXIT_FAILURE)); | ||
| } | ||
| set_buffer(sendbuf, options.accel, 1, bufsize); | ||
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| bufsize = sizeof(float)*(options.max_message_size/sizeof(float)); | ||
| if (allocate_memory_coll((void**)&recvbuf, bufsize, options.accel)) { | ||
| fprintf(stderr, "Could Not Allocate Memory [rank %d]\n", rank); | ||
| MPI_CHECK(MPI_Abort(MPI_COMM_WORLD, EXIT_FAILURE)); | ||
| } | ||
| set_buffer(recvbuf, options.accel, 0, bufsize); | ||
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| print_preamble(rank); | ||
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| for(size=options.min_message_size; size*sizeof(float) <= options.max_message_size; size *= 2) { | ||
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| if(size > LARGE_MESSAGE_SIZE) { | ||
| options.skip = options.skip_large; | ||
| options.iterations = options.iterations_large; | ||
| } | ||
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| MPI_CHECK(MPI_Barrier(MPI_COMM_WORLD)); | ||
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| timer=0.0; | ||
| for(i=0; i < options.iterations + options.skip ; i++) { | ||
| t_start = MPI_Wtime(); | ||
| MPI_CHECK(MPI_Allreduce(sendbuf, recvbuf, size, MPI_FLOAT, MPI_SUM, MPI_COMM_WORLD )); | ||
| t_stop=MPI_Wtime(); | ||
| if(i>=options.skip){ | ||
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| timer+=t_stop-t_start; | ||
| } | ||
| MPI_CHECK(MPI_Barrier(MPI_COMM_WORLD)); | ||
| } | ||
| latency = (double)(timer * 1e6) / options.iterations; | ||
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| MPI_CHECK(MPI_Reduce(&latency, &min_time, 1, MPI_DOUBLE, MPI_MIN, 0, | ||
| MPI_COMM_WORLD)); | ||
| MPI_CHECK(MPI_Reduce(&latency, &max_time, 1, MPI_DOUBLE, MPI_MAX, 0, | ||
| MPI_COMM_WORLD)); | ||
| MPI_CHECK(MPI_Reduce(&latency, &avg_time, 1, MPI_DOUBLE, MPI_SUM, 0, | ||
| MPI_COMM_WORLD)); | ||
| avg_time = avg_time/numprocs; | ||
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| print_stats(rank, size * sizeof(float), avg_time, min_time, max_time); | ||
| MPI_CHECK(MPI_Barrier(MPI_COMM_WORLD)); | ||
| } | ||
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| free_buffer(sendbuf, options.accel); | ||
| free_buffer(recvbuf, options.accel); | ||
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| MPI_CHECK(MPI_Finalize()); | ||
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| if (NONE != options.accel) { | ||
| if (cleanup_accel()) { | ||
| fprintf(stderr, "Error cleaning up device\n"); | ||
| exit(EXIT_FAILURE); | ||
| } | ||
| } | ||
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| return EXIT_SUCCESS; | ||
| } |