rocm-systems/projects/rocshmem/tests/functional_tests/barrier_all_tester.cpp

/******************************************************************************
 * Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 *****************************************************************************/

#include "barrier_all_tester.hpp"

#include <rocshmem/rocshmem.hpp>

using namespace rocshmem;

/******************************************************************************
 * DEVICE TEST KERNEL
 *****************************************************************************/
__global__ void BarrierAllTest(int loop, int skip, long long int *start_time,
                               long long int *end_time, TestType type,
                               int wf_size) {
  __shared__ rocshmem_ctx_t ctx;
  int t_id  = get_flat_block_id();
  int wg_id = get_flat_grid_id();
  int wf_id = t_id / wf_size;

  rocshmem_wg_init();
  rocshmem_wg_ctx_create(ROCSHMEM_CTX_WG_PRIVATE, &ctx);

  for (int i = 0; i < loop + skip; i++) {
    if (hipThreadIdx_x == 0 && i == skip) {
      start_time[wg_id] = wall_clock64();
    }

    switch (type) {
      case BarrierAllTestType:
        if(t_id == 0) {
          rocshmem_ctx_barrier_all(ctx);
        }
        break;
      case WAVEBarrierAllTestType:
        if(wf_id == 0) {
          rocshmem_ctx_wave_barrier_all(ctx);
        }
        break;
      case WGBarrierAllTestType:
        rocshmem_ctx_wg_barrier_all(ctx);
        break;
      default:
        break;
    }
    __syncthreads();
  }

  if (hipThreadIdx_x == 0) {
    end_time[wg_id] = wall_clock64();
  }

  rocshmem_wg_ctx_destroy(&ctx);
  rocshmem_wg_finalize();
}

/******************************************************************************
 * HOST TESTER CLASS METHODS
 *****************************************************************************/
BarrierAllTester::BarrierAllTester(TesterArguments args) : Tester(args) {}

BarrierAllTester::~BarrierAllTester() {}

void BarrierAllTester::launchKernel(dim3 gridSize, dim3 blockSize, int loop,
                                    uint64_t size) {
  size_t shared_bytes = 0;

  hipLaunchKernelGGL(BarrierAllTest, gridSize, blockSize, shared_bytes, stream,
                     loop, args.skip, start_time, end_time, _type, wf_size);

  num_msgs = (loop + args.skip) * gridSize.x;
  num_timed_msgs = loop * gridSize.x;
}

void BarrierAllTester::resetBuffers(uint64_t size) {}

void BarrierAllTester::verifyResults(uint64_t size) {}