rocm-systems/perftests/memory/hipPerfHostNumaAlloc.cpp

/*
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/* HIT_START
 * BUILD_CMD: hipPerfHostNumaAlloc %hc -I%S/../../src %S/%s %S/../../src/test_common.cpp -lnuma -o %T/%t EXCLUDE_HIP_PLATFORM nvidia
 * TEST: %t
 * HIT_END
 */

#include "test_common.h"
#include <iostream>
#include <time.h>
#include <cstdio>
#include <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <numaif.h>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <array>
#include "hip/hip_runtime.h"

// To run it correctly, we must not export HIP_VISIBLE_DEVICES.
// And we must explicitly link libnuma because of numa api move_pages().
#define NUM_PAGES 4
char *h = nullptr;
char *d_h = nullptr;
char *m = nullptr;
char *d_m = nullptr;
int page_size = 0;
const int mode[] = { MPOL_DEFAULT, MPOL_BIND, MPOL_PREFERRED, MPOL_INTERLEAVE };
const char* modeStr[] = { "MPOL_DEFAULT", "MPOL_BIND", "MPOL_PREFERRED", "MPOL_INTERLEAVE" };

std::string exeCommand(const char* cmd) {
  std::array<char, 128> buff;
  std::string result;
  std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
  if (!pipe) {
    return result;
  }
  while (fgets(buff.data(), buff.size(), pipe.get()) != nullptr) {
    result += buff.data();
  }
  return result;
}

int getCpuAgentCount() {
  const char* cmd = "cat /proc/cpuinfo | grep \"physical id\" | sort | uniq | wc -l";
  int cpuAgentCount = std::atoi(exeCommand(cmd).c_str());
  return cpuAgentCount;
}

bool test(int cpuId, int gpuId, int numaMode, unsigned int hostMallocflags) {
  void *pages[NUM_PAGES];
  int status[NUM_PAGES];
  int nodes[NUM_PAGES];
  int ret_code;

  printf("set cpu %d, gpu %d, numaMode %d, hostMallocflags 0x%x\n", cpuId,
         gpuId, numaMode, hostMallocflags);

  if (cpuId >= 0) {
    unsigned long nodeMask = 1 << cpuId;
    unsigned long maxNode = sizeof(nodeMask) * 8;
    if (set_mempolicy(numaMode, numaMode == MPOL_DEFAULT ? NULL : &nodeMask,
                      numaMode == MPOL_DEFAULT ? 0 : maxNode) == -1) {
      printf("set_mempolicy() failed with err %d\n", errno);
      return false;
    }
  }

  if (gpuId >= 0) {
    HIPCHECK(hipSetDevice(gpuId));
  }

  posix_memalign((void**) &m, page_size, page_size * NUM_PAGES);
  hipHostRegister(m, page_size * NUM_PAGES, hipHostRegisterMapped);
  hipHostGetDevicePointer((void**) &d_m, m, 0);

  status[0] = -1;
  pages[0] = m;
  for (int i = 1; i < NUM_PAGES; i++) {
    pages[i] = (char*) pages[0] + page_size;
  }
  ret_code = move_pages(0, NUM_PAGES, pages, NULL, status, 0);
  printf("Memory (malloc) ret %d at %p (dev %p) is at node: ", ret_code, m, d_m);
  for (int i = 0; i < NUM_PAGES; i++) {
    printf("%d ", status[i]); // Don't verify as it's out of our control
  }
  printf("\n");

  HIPCHECK(hipHostMalloc((void**) &h, page_size*NUM_PAGES, hostMallocflags));
  pages[0] = h;
  for (int i = 1; i < NUM_PAGES; i++) {
    pages[i] = (char*) pages[0] + page_size;
  }
  ret_code = move_pages(0, NUM_PAGES, pages, NULL, status, 0);
  d_h = nullptr;
  if (hostMallocflags & hipHostMallocMapped) {
    hipHostGetDevicePointer((void**) &d_h, h, 0);
    printf("Memory (hipHostMalloc) ret %d at %p (dev %p) is at node: ",
           ret_code, h, d_h);
  } else {
    printf("Memory (hipHostMalloc) ret %d at %p is at node: ", ret_code, h);
  }
  for (int i = 0; i < NUM_PAGES; i++) {
    printf("%d ", status[i]);  // Always print it even if it's wrong. Verify later
  }
  printf("\n");

  HIPCHECK(hipHostFree((void* )h));
  hipHostUnregister(m);
  free(m);

  if (cpuId >= 0 && (numaMode == MPOL_BIND || numaMode == MPOL_PREFERRED)) {
    for (int i = 0; i < NUM_PAGES; i++) {
      if (status[i] != cpuId) {  // Now verify
        printf("Failed at %d", i);
        return false;
      }
    }
  }
  return true;
}

bool runTest(const int &cpuCount, const int &gpuCount,
             const unsigned int &hostMallocflags, const std::string &str) {
  printf("%s\n", str.c_str());

  for (int m = 0; m < sizeof(mode) / sizeof(mode[0]); m++) {
    printf("Testing %s\n", modeStr[m]);

    for (int i = 0; i < cpuCount; i++) {
      for (int j = 0; j < gpuCount; j++) {
        if (!test(i, j, mode[m], hostMallocflags)) {
          return false;
        }
      }
    }
  }
  return true;
}

int main(int argc, char *argv[]) {
  int gpuCount = 0;
  HIPCHECK(hipGetDeviceCount(&gpuCount));
  int cpuCount = getCpuAgentCount();
  page_size = getpagesize();
  printf("Cpu count %d, Gpu count %d, Page size %d\n", cpuCount, gpuCount,
         page_size);

  if (cpuCount < 0 || gpuCount < 0) {
    failed("Bad device count\n");
    return -1;
  }

  if (!runTest(cpuCount, gpuCount, hipHostMallocDefault | hipHostMallocNumaUser,
               "Testing hipHostMallocDefault | hipHostMallocNumaUser........................")) {
    failed("Failed testing hipHostMallocDefault | hipHostMallocNumaUser\n");
    return -1;
  }

  if (!runTest(cpuCount, gpuCount, hipHostMallocMapped | hipHostMallocNumaUser,
               "Testing hipHostMallocMapped | hipHostMallocNumaUser.........................")) {
    failed("Failed testing hipHostMallocMapped | hipHostMallocNumaUser\n");
    return -1;
  }

  passed();
}