rocm-systems/tests/src/runtimeApi/module/hipModule.cpp

/*
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANNY CLAIM, DAMAGES OR OTHER
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THE SOFTWARE.
*/

/* HIT_START
 * BUILD_CMD: vcpy_kernel.code %hc --genco %S/vcpy_kernel.cpp -o vcpy_kernel.code
 * BUILD: %t %s ../../test_common.cpp NVCC_OPTIONS -std=c++11
 * TEST: %t --tests 0x1
 * TEST: %t --tests 0x2
 * HIT_END
 */

#include <iostream>
#include <fstream>
#ifdef __linux__
#include <unistd.h>
#endif
#include "test_common.h"

#define LEN 64
#define SIZE (LEN << 2)
#define COMMAND_LEN 256
#define CODE_OBJ_SINGLEARCH "vcpy_kernel.code"
#define kernel_name "hello_world"
#define CODE_OBJ_MULTIARCH "vcpy_kernel_multarch.code"

bool testCodeObjFile(const char *codeObjFile) {
  float *A, *B;
  hipDeviceptr_t Ad, Bd;
  A = new float[LEN];
  B = new float[LEN];

  for (uint32_t i = 0; i < LEN; i++) {
    A[i] = i * 1.0f;
    B[i] = 0.0f;
  }

  HIPCHECK(hipMalloc(reinterpret_cast<void**>(&Ad), SIZE));
  HIPCHECK(hipMalloc(reinterpret_cast<void**>(&Bd), SIZE));
  HIPCHECK(hipMemcpyHtoD(Ad, A, SIZE));
  HIPCHECK(hipMemcpyHtoD(Bd, B, SIZE));

  hipModule_t Module;
  hipFunction_t Function;
  HIPCHECK(hipModuleLoad(&Module, codeObjFile));
  HIPCHECK(hipModuleGetFunction(&Function, Module, kernel_name));

  hipStream_t stream;
  HIPCHECK(hipStreamCreate(&stream));

  struct {
    void* _Ad;
    void* _Bd;
  } args;
  args._Ad = reinterpret_cast<void*>(Ad);
  args._Bd = reinterpret_cast<void*>(Bd);
  size_t size = sizeof(args);

  void* config[] = {HIP_LAUNCH_PARAM_BUFFER_POINTER, &args,
                    HIP_LAUNCH_PARAM_BUFFER_SIZE, &size,
                    HIP_LAUNCH_PARAM_END};
  HIPCHECK(hipModuleLaunchKernel(Function, 1, 1, 1, LEN, 1, 1, 0,
                                 stream, NULL,
                                 reinterpret_cast<void**>(&config)));

  HIPCHECK(hipStreamDestroy(stream));

  HIPCHECK(hipMemcpyDtoH(B, Bd, SIZE));

  bool btestPassed = true;
  for (uint32_t i = 0; i < LEN; i++) {
    if (A[i] != B[i]) {
      btestPassed = false;
      break;
    }
  }
  HIPCHECK(hipFree(reinterpret_cast<void*>(Bd)));
  HIPCHECK(hipFree(reinterpret_cast<void*>(Ad)));
  delete[] B;
  delete[] A;
  HIPCHECK(hipModuleUnload(Module));
  return btestPassed;
}

#ifdef __linux__
/**
 * Check if environment variable $ROCM_PATH is defined
 *
 */
bool isRocmPathSet() {
  FILE *fpipe;
  char const *command = "echo $ROCM_PATH";
  fpipe = popen(command, "r");

  if (fpipe == nullptr) {
    printf("Unable to create command\n");
    return false;
  }
  char command_op[COMMAND_LEN];
  if (fgets(command_op, COMMAND_LEN, fpipe)) {
    size_t len = strlen(command_op);
    if (len > 1) {  // This is because fgets always adds newline character
      pclose(fpipe);
      return true;
    }
  }
  pclose(fpipe);
  return false;
}
#endif

bool testMultiTargArchCodeObj() {
  bool btestPassed = true;
#ifdef __linux__
  char command[COMMAND_LEN];
  hipDeviceProp_t props;
  hipGetDeviceProperties(&props, 0);
  // Hardcoding the codeobject lines in multiple string to avoid cpplint warning
  std::string CodeObjL1 = "#include \"hip/hip_runtime.h\"\n";
  std::string CodeObjL2 =
       "extern \"C\" __global__ void hello_world(float* a, float* b) {\n";
  std::string CodeObjL3 = "  int tx = hipThreadIdx_x;\n";
  std::string CodeObjL4 = "  b[tx] = a[tx];\n";
  std::string CodeObjL5 = "}";
  // Creating the full code object string
  static std::string CodeObj = CodeObjL1 + CodeObjL2 + CodeObjL3 +
                               CodeObjL4 + CodeObjL5;
  std::ofstream ofs("/tmp/vcpy_kernel.cpp", std::ofstream::out);
  ofs << CodeObj;
  ofs.close();
  // Copy the file into current working location if not available
  if (access("/tmp/vcpy_kernel.cpp", F_OK) == -1) {
    printf("Code Object File: /tmp/vcpy_kernel.cpp not found \n");
    return true;
  }
  // Generate the command to generate multi architecture code object file
  const char* hipcc_path = nullptr;
  if (isRocmPathSet()) {
    hipcc_path = "$ROCM_PATH/bin/hipcc";
  } else {
    hipcc_path = "/opt/rocm/bin/hipcc";
  }
  /* Putting these command parameters into a variable to shorten the string
    literal length in order to avoid multiline string literal cpplint warning
  */
  const char* genco_option = "--offload-arch";
  const char* input_codeobj = "/tmp/vcpy_kernel.cpp";
  snprintf(command, COMMAND_LEN,
  "%s --genco %s=gfx801,gfx802,gfx803,gfx900,gfx908,%s %s -o %s",
  hipcc_path, genco_option, props.gcnArchName, input_codeobj,
  CODE_OBJ_MULTIARCH);

  printf("command = %s\n", command);
  system((const char*)command);
  // Check if the code object file is created
  snprintf(command, COMMAND_LEN, "./%s",
           CODE_OBJ_MULTIARCH);

  if (access(command, F_OK) == -1) {
    printf("Code Object File not found \n");
    return true;
  }
  btestPassed = testCodeObjFile(CODE_OBJ_MULTIARCH);
#else
  printf("This test is skipped due to non linux environment.\n");
#endif
  return btestPassed;
}

int main(int argc, char* argv[]) {
  HipTest::parseStandardArguments(argc, argv, true);
  bool TestPassed = true;
  if (p_tests == 0x1) {
    /* In this test scenario a code object file for the current
    GPU architecture is generated, loaded and executed. */
    TestPassed = testCodeObjFile(CODE_OBJ_SINGLEARCH);
  } else if (p_tests == 0x2) {
    /* In this test scenario a code object file for the multiple
    GPU architectures (including the current) is generated, loaded
    and executed. */
    TestPassed = testMultiTargArchCodeObj();
  } else {
    printf("Invalid Test Case \n");
    exit(1);
  }
  if (TestPassed) {
    passed();
  } else {
    failed("Test Case %x Failed!", p_tests);
  }
}