Exemplos de alignAddrSize em C++ (Cpp)

Exemplo n.º 1

Arquivo: chpl-topo.c Projeto: bollu/chapel

void chpl_topo_touchMemFromSubloc(void* p, size_t size, chpl_bool onlyInside,
                                  c_sublocid_t subloc) {
  size_t pgSize;
  unsigned char* pPgLo;
  size_t nPages;
  hwloc_cpuset_t cpuset;
  int flags;

  _DBG_P("chpl_topo_touchMemFromSubloc(%p, %#zx, onlyIn=%s, %d)\n",
         p, size, (onlyInside ? "T" : "F"), (int) subloc);

  if (!haveTopology
      || !topoSupport->cpubind->get_thread_cpubind
      || !topoSupport->cpubind->set_thread_cpubind) {
    return;
  }

  alignAddrSize(p, size, onlyInside, &pgSize, &pPgLo, &nPages);

  _DBG_P("    localize %p, %#zx bytes (%#zx pages)\n",
         pPgLo, nPages * pgSize, nPages);

  if (nPages == 0)
    return;

  if ((cpuset = hwloc_bitmap_alloc()) == NULL) {
    report_error("hwloc_bitmap_alloc()", errno);
  }

  flags = HWLOC_CPUBIND_THREAD;
  if (hwloc_get_cpubind(topology, cpuset, flags)) {
    report_error("hwloc_get_cpubind()", errno);
  }

  chpl_topo_setThreadLocality(subloc);

  {
    size_t pg;
    for (pg = 0; pg < nPages; pg++) {
      pPgLo[pg * pgSize] = 0;
    }
  }

  flags = HWLOC_CPUBIND_THREAD | HWLOC_CPUBIND_STRICT;
  if (hwloc_set_cpubind(topology, cpuset, flags)) {
    report_error("hwloc_set_cpubind()", errno);
  }

  hwloc_bitmap_free(cpuset);
}

Exemplo n.º 2

Arquivo: topo-hwloc.c Projeto: DawidvC/chapel

void chpl_topo_setMemLocality(void* p, size_t size, chpl_bool onlyInside,
                              c_sublocid_t subloc) {
  size_t pgSize;
  unsigned char* pPgLo;
  size_t nPages;

  _DBG_P("chpl_topo_setMemLocality(%p, %#zx, onlyIn=%s, %d)\n",
         p, size, (onlyInside ? "T" : "F"), (int) subloc);

  if (!haveTopology) {
    return;
  }

  alignAddrSize(p, size, onlyInside, &pgSize, &pPgLo, &nPages);

  _DBG_P("    localize %p, %#zx bytes (%#zx pages)\n",
         pPgLo, nPages * pgSize, nPages);

  if (nPages == 0)
    return;

  chpl_topo_setMemLocalityByPages(pPgLo, nPages * pgSize, getNumaObj(subloc));
}

Exemplo n.º 3

Arquivo: topo-hwloc.c Projeto: DawidvC/chapel

void chpl_topo_setMemSubchunkLocality(void* p, size_t size,
                                      chpl_bool onlyInside,
                                      size_t* subchunkSizes) {
  size_t pgSize;
  unsigned char* pPgLo;
  size_t nPages;
  int i;
  size_t pg;
  size_t pgNext;

  _DBG_P("chpl_topo_setMemSubchunkLocality(%p, %#zx, onlyIn=%s)\n",
         p, size, (onlyInside ? "T" : "F"));

  if (!haveTopology) {
    return;
  }

  alignAddrSize(p, size, onlyInside, &pgSize, &pPgLo, &nPages);

  _DBG_P("    localize %p, %#zx bytes (%#zx pages)\n",
         pPgLo, nPages * pgSize, nPages);

  if (nPages == 0)
    return;

  for (i = 0, pg = 0; i < numNumaDomains; i++, pg = pgNext) {
    if (i == numNumaDomains - 1)
      pgNext = nPages;
    else
      pgNext = 1 + (nPages * (i + 1) - 1) / numNumaDomains;
    chpl_topo_setMemLocalityByPages(pPgLo + pg * pgSize,
                                    (pgNext - pg) * pgSize, getNumaObj(i));
    if (subchunkSizes != NULL) {
      subchunkSizes[i] = (pgNext - pg) * pgSize;
    }
  }
}