rocm-systems/projects/rocprofiler/test/app/stand_intercept_test.cpp

/******************************************************************************
Copyright (c) 2018 Advanced Micro Devices, Inc. All rights reserved.

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THE SOFTWARE.
*******************************************************************************/

#include <hsa/hsa.h>
#include <string.h>
#include <unistd.h>
#include <iostream>
#include <vector>
#include <atomic>

#include "ctrl/run_kernel.h"
#include "ctrl/test_aql.h"
#include "ctrl/test_hsa.h"
#include "rocprofiler/rocprofiler.h"
#include "dummy_kernel/dummy_kernel.h"
#include "simple_convolution/simple_convolution.h"
#include "util/test_assert.h"

// Dispatch callbacks and context handlers synchronization
pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;

// Error handler
void fatal(const std::string msg) {
  fflush(stdout);
  fprintf(stderr, "%s\n\n", msg.c_str());
  fflush(stderr);
  abort();
}

// Check returned HSA API status
void check_status(hsa_status_t status) {
  if (status != HSA_STATUS_SUCCESS) {
    const char* error_string = NULL;
    rocprofiler_error_string(&error_string);
    fprintf(stderr, "ERROR: %s\n", error_string);
    abort();
  }
}

// Context stored entry type
struct context_entry_t {
  bool valid;
  hsa_agent_t agent;
  rocprofiler_group_t group;
  rocprofiler_callback_data_t data;
};

// Dump stored context entry
void dump_context_entry(context_entry_t* entry) {
  volatile std::atomic<bool>* valid = reinterpret_cast<std::atomic<bool>*>(&entry->valid);
  while (valid->load() == false) sched_yield();

  const std::string kernel_name = entry->data.kernel_name;
  const rocprofiler_dispatch_record_t* record = entry->data.record;

  fflush(stdout);
  fprintf(stdout, "kernel-object(0x%lx) name(\"%s\")", entry->data.kernel_object,
          kernel_name.c_str());
  if (record)
    fprintf(stdout, ", gpu-id(%u), time(%lu,%lu,%lu,%lu)",
            HsaRsrcFactory::Instance().GetAgentInfo(entry->agent)->dev_index, record->dispatch,
            record->begin, record->end, record->complete);
  fprintf(stdout, "\n");
  fflush(stdout);

  rocprofiler_group_t& group = entry->group;
  if (group.context == NULL) {
    fprintf(stderr, "tool error: context is NULL\n");
    abort();
  }

  rocprofiler_close(group.context);
}

// Profiling completion handler
// Dump and delete the context entry
// Return true if the context was dumped successfully
bool context_handler(rocprofiler_group_t group, void* arg) {
  context_entry_t* entry = reinterpret_cast<context_entry_t*>(arg);

  if (pthread_mutex_lock(&mutex) != 0) {
    perror("pthread_mutex_lock");
    abort();
  }

  dump_context_entry(entry);
  delete entry;

  if (pthread_mutex_unlock(&mutex) != 0) {
    perror("pthread_mutex_unlock");
    abort();
  }

  return false;
}

// Kernel disoatch callback
hsa_status_t dispatch_callback(const rocprofiler_callback_data_t* callback_data,
                               void* /*user_data*/, rocprofiler_group_t* group) {
  // HSA status
  hsa_status_t status = HSA_STATUS_ERROR;

  // Profiling context
  rocprofiler_t* context = NULL;

  // Context entry
  context_entry_t* entry = new context_entry_t();

  // context properties
  rocprofiler_properties_t properties{};
  properties.handler = context_handler;
  properties.handler_arg = (void*)entry;

  // Open profiling context
  status = rocprofiler_open(callback_data->agent, NULL, 0, &context,
                            0 /*ROCPROFILER_MODE_SINGLEGROUP*/, &properties);
  check_status(status);

  // Get group[0]
  status = rocprofiler_get_group(context, 0, group);
  check_status(status);

  // Fill profiling context entry
  entry->agent = callback_data->agent;
  entry->group = *group;
  entry->data = *callback_data;
  entry->data.kernel_name = strdup(callback_data->kernel_name);
  reinterpret_cast<std::atomic<bool>*>(&entry->valid)->store(true);

  return HSA_STATUS_SUCCESS;
}

int main() {
  bool ret_val = true;
  const char* kiter_s = getenv("ROCP_KITER");
  const char* diter_s = getenv("ROCP_DITER");
  const unsigned kiter = (kiter_s != NULL) ? atol(kiter_s) : 1;
  const unsigned diter = (diter_s != NULL) ? atol(diter_s) : 1;

  // Adding dispatch observer
  rocprofiler_queue_callbacks_t callbacks_ptrs{};
  callbacks_ptrs.dispatch = dispatch_callback;
  rocprofiler_set_queue_callbacks(callbacks_ptrs, NULL);

  // Instantiate HSA resources
  HsaRsrcFactory::Create();

  // Getting GPU device info
  const AgentInfo* agent_info = NULL;
  if (HsaRsrcFactory::Instance().GetGpuAgentInfo(0, &agent_info) == false) abort();

  // Creating the queue
  hsa_queue_t* queue = NULL;
  if (HsaRsrcFactory::Instance().CreateQueue(agent_info, 128, &queue) == false) abort();

  // Test initialization
  TestHsa::HsaInstantiate();

  for (unsigned ind = 0; ind < kiter; ++ind) {
    printf("Iteration %u:\n", ind);
    if ((ind & 1) == 0)
      rocprofiler_start_queue_callbacks();
    else
      rocprofiler_stop_queue_callbacks();
    ret_val = RunKernel<DummyKernel, TestAql>(0, NULL, agent_info, queue, diter);
    if (ret_val) ret_val = RunKernel<SimpleConvolution, TestAql>(0, NULL, agent_info, queue, diter);
  }

  TestHsa::HsaShutdown();

  return (ret_val) ? 0 : 1;
}