rocm-systems/tests/src/printf/hipPrintfManyWaves.cpp

/*
Copyright (c) 2020 - present Advanced Micro Devices, Inc. All rights reserved.

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The above copyright notice and this permission notice shall be included in
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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THE SOFTWARE.
*/

/* HIT_START
 * BUILD: %t %s EXCLUDE_HIP_PLATFORM nvidia
 * TEST: %t EXCLUDE_HIP_PLATFORM nvidia
 * HIT_END
 */

#include "test_common.h"
#include "printf_common.h"
#include <vector>

// Global string constants don't work inside device functions, so we
// use a macro to repeat the declaration in host and device contexts.
DECLARE_DATA();

__global__ void kernel_mixed0(int *retval) {
  DECLARE_DATA();

  uint tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
  ulong result = 0;

  // Three strings passed as divergent values to the same hostcall.
  const char *msg;
  switch (tid % 3) {
  case 0:
    msg = msg_short;
    break;
  case 1:
    msg = msg_long1;
    break;
  case 2:
    msg = msg_long2;
    break;
  }

  retval[tid] = printf("%s\n", msg);
}

static void test_mixed0(int *retval, uint num_blocks, uint threads_per_block) {
  CaptureStream capture(stdout);

  uint num_threads = num_blocks * threads_per_block;
  for (uint i = 0; i != num_threads; ++i) {
    retval[i] = 0x23232323;
  }

  capture.Begin();
  hipLaunchKernelGGL(kernel_mixed0, dim3(num_blocks), dim3(threads_per_block),
                     0, 0, retval);
  hipStreamSynchronize(0);
  capture.End();

  for (uint ii = 0; ii != num_threads; ++ii) {
    switch (ii % 3) {
    case 0:
      HIPASSERT(retval[ii] == strlen(msg_short) + 1);
      break;
    case 1:
      HIPASSERT(retval[ii] == strlen(msg_long1) + 1);
      break;
    case 2:
      HIPASSERT(retval[ii] == strlen(msg_long2) + 1);
      break;
    }
  }

  std::string data = capture.getData();
  std::stringstream dataStream;
  dataStream << data;

  std::map<std::string, int> linecount;
  for (std::string line; std::getline(dataStream, line);) {
    linecount[line]++;
  }

  HIPASSERT(linecount.size() == 3);
  HIPASSERT(linecount[msg_short] == (num_threads + 2) / 3);
  HIPASSERT(linecount[msg_long1] == (num_threads + 1) / 3);
  HIPASSERT(linecount[msg_long2] == (num_threads + 0) / 3);
}

__global__ void kernel_mixed1(int *retval) {
  DECLARE_DATA();

  const uint tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;

  // Three strings passed to divergent hostcalls.
  switch (tid % 3) {
  case 0:
    retval[tid] = printf("%s\n", msg_short);
    break;
  case 1:
    retval[tid] = printf("%s\n", msg_long1);
    break;
  case 2:
    retval[tid] = printf("%s\n", msg_long2);
    break;
  }
}

static void test_mixed1(int *retval, uint num_blocks, uint threads_per_block) {
  CaptureStream capture(stdout);

  uint num_threads = num_blocks * threads_per_block;
  for (uint i = 0; i != num_threads; ++i) {
    retval[i] = 0x23232323;
  }

  capture.Begin();
  hipLaunchKernelGGL(kernel_mixed1, dim3(num_blocks), dim3(threads_per_block),
                     0, 0, retval);
  hipStreamSynchronize(0);
  capture.End();

  for (uint ii = 0; ii != num_threads; ++ii) {
    switch (ii % 3) {
    case 0:
      HIPASSERT(retval[ii] == strlen(msg_short) + 1);
      break;
    case 1:
      HIPASSERT(retval[ii] == strlen(msg_long1) + 1);
      break;
    case 2:
      HIPASSERT(retval[ii] == strlen(msg_long2) + 1);
      break;
    }
  }

  std::string data = capture.getData();
  std::stringstream dataStream;
  dataStream << data;

  std::map<std::string, int> linecount;
  for (std::string line; std::getline(dataStream, line);) {
    linecount[line]++;
  }

  HIPASSERT(linecount.size() == 3);
  HIPASSERT(linecount[msg_short] == (num_threads + 2) / 3);
  HIPASSERT(linecount[msg_long1] == (num_threads + 1) / 3);
  HIPASSERT(linecount[msg_long2] == (num_threads + 0) / 3);
}

__global__ void kernel_mixed2(int *retval) {
  DECLARE_DATA();

  const uint tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;

  // Three different strings. All workitems print all three, but
  // in different orders.
  const char *msg[] = {msg_short, msg_long1, msg_long2};
  retval[tid] =
      printf("%s%s%s\n", msg[tid % 3], msg[(tid + 1) % 3], msg[(tid + 2) % 3]);
}

static void test_mixed2(int *retval, uint num_blocks, uint threads_per_block) {
  CaptureStream capture(stdout);

  uint num_threads = num_blocks * threads_per_block;
  for (uint i = 0; i != num_threads; ++i) {
    retval[i] = 0x23232323;
  }

  capture.Begin();
  hipLaunchKernelGGL(kernel_mixed2, dim3(num_blocks), dim3(threads_per_block),
                     0, 0, retval);
  hipStreamSynchronize(0);
  capture.End();

  for (uint ii = 0; ii != num_threads; ++ii) {
    HIPASSERT(retval[ii] ==
              strlen(msg_short) + strlen(msg_long1) + strlen(msg_long2) + 1);
  }

  std::string data = capture.getData();
  std::stringstream dataStream;
  dataStream << data;

  std::map<std::string, int> linecount;
  for (std::string line; std::getline(dataStream, line);) {
    linecount[line]++;
  }

  std::string str1 =
      std::string(msg_short) + std::string(msg_long1) + std::string(msg_long2);
  std::string str2 =
      std::string(msg_long1) + std::string(msg_long2) + std::string(msg_short);
  std::string str3 =
      std::string(msg_long2) + std::string(msg_short) + std::string(msg_long1);

  HIPASSERT(linecount.size() == 3);
  HIPASSERT(linecount[str1] == (num_threads + 2) / 3);
  HIPASSERT(linecount[str2] == (num_threads + 1) / 3);
  HIPASSERT(linecount[str3] == (num_threads + 0) / 3);
}

__global__ void kernel_mixed3(int *retval) {
  DECLARE_DATA();

  const uint tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
  int result = 0;

  result += printf("%s\n", msg_long1);
  if (tid % 3 == 0) {
    result += printf("%s\n", msg_short);
  }
  result += printf("%s\n", msg_long2);

  retval[tid] = result;
}

static void test_mixed3(int *retval, uint num_blocks, uint threads_per_block) {
  CaptureStream capture(stdout);

  uint num_threads = num_blocks * threads_per_block;
  for (uint i = 0; i != num_threads; ++i) {
    retval[i] = 0x23232323;
  }

  capture.Begin();
  hipLaunchKernelGGL(kernel_mixed3, dim3(num_blocks), dim3(threads_per_block),
                     0, 0, retval);
  hipStreamSynchronize(0);
  capture.End();

  for (uint ii = 0; ii != num_threads; ++ii) {
    if (ii % 3 == 0) {
      HIPASSERT(retval[ii] ==
                strlen(msg_long1) + strlen(msg_short) + strlen(msg_long2) + 3);
    } else {
      HIPASSERT(retval[ii] == strlen(msg_long1) + strlen(msg_long2) + 2);
    }
  }

  std::string data = capture.getData();
  std::stringstream dataStream;
  dataStream << data;

  std::map<std::string, int> linecount;
  for (std::string line; std::getline(dataStream, line);) {
    linecount[line]++;
  }

  HIPASSERT(linecount.size() == 3);
  HIPASSERT(linecount[msg_long1] == num_threads);
  HIPASSERT(linecount[msg_long2] == num_threads);
  HIPASSERT(linecount[msg_short] == (num_threads + 2) / 3);
}

__global__ void kernel_numbers() {
  uint tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
  for (uint i = 0; i != 7; ++i) {
    uint base = tid * 21 + i * 3;
    printf("%d %d %d\n", base, base + 1, base + 2);
  }
}

static void test_numbers(uint num_blocks, uint threads_per_block) {
  CaptureStream capture(stdout);
  uint num_threads = num_blocks * threads_per_block;

  capture.Begin();
  hipLaunchKernelGGL(kernel_numbers, dim3(num_blocks), dim3(threads_per_block),
                     0, 0);
  hipStreamSynchronize(0);
  capture.End();

  std::string data = capture.getData();
  std::stringstream dataStream;
  dataStream << data;

  std::vector<uint> points;
  while (true) {
    uint i;
    dataStream >> i;
    if (dataStream.fail())
      break;
    points.push_back(i);
  }

  std::sort(points.begin(), points.end());
  points.erase(std::unique(points.begin(), points.end()), points.end());
  HIPASSERT(points.size() == 21 * num_threads);
  HIPASSERT(points.back() == 21 * num_threads - 1);
}

int main(int argc, char **argv) {
  uint num_blocks = 150;
  uint threads_per_block = 250;
  uint num_threads = num_blocks * threads_per_block;

  void *retval_void;
  HIPCHECK(hipHostMalloc(&retval_void, 4 * num_threads));
  auto retval = reinterpret_cast<int *>(retval_void);

  test_mixed0(retval, num_blocks, threads_per_block);
  test_mixed1(retval, num_blocks, threads_per_block);
  test_mixed2(retval, num_blocks, threads_per_block);
  test_mixed3(retval, num_blocks, threads_per_block);
  test_numbers(num_blocks, threads_per_block);

  passed();
}