// Viktor Haag, 2016
// LSS, University of Erlangen-Nuremberg, Germany
//
+// Michael Hussnaetter, 2017-2018
+// University of Erlangen-Nuremberg, Germany
+// michael.hussnaetter -at- fau.de
+//
// This file is part of the Lattice Boltzmann Benchmark Kernels (LbmBenchKernels).
//
// LbmBenchKernels is free software: you can redistribute it and/or modify
// along with LbmBenchKernels. If not, see <http://www.gnu.org/licenses/>.
//
// --------------------------------------------------------------------------
+// TODO: make configurable
+#define HAVE_HUGE_PAGES
+
+
+#ifdef HAVE_HUGE_PAGES
+#define _BSD_SOURCE
+#endif
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h> // strerror
#include <errno.h>
+
+#ifdef HAVE_MEMKIND
+#include <hbwmalloc.h>
+#endif
+
+#ifdef HAVE_HUGE_PAGES
+#include <sys/mman.h> // madvise
+#endif
+
#include "Base.h"
#include "Memory.h"
exit(1);
}
+#ifdef HAVE_HUGE_PAGES
+
+ if (alignmentBytes % 4096 == 0) {
+ ret = madvise(*ptr, bytesToAlloc, MADV_HUGEPAGE);
+
+ if (ret != 0) {
+ DEBUG_BREAK_POINT();
+ Error("madvise(%p, %lu, MADV_HUGEPAGE) failed: %d - %s.\n", *ptr, bytesToAlloc, errno, strerror(errno));
+ exit(1);
+ }
+ }
+#endif
+
return 0;
}
return 0;
}
+
+#ifdef HAVE_MEMKIND
+int HbwAlloc(void ** ptr, size_t bytesToAlloc)
+{
+ void * tmpPtr;
+
+ tmpPtr = hbw_malloc(bytesToAlloc);
+
+ if (tmpPtr == NULL) { // && bytesToAlloc != 0) {
+ Error("allocation of %lu bytes in HBM failed: %d - %s\n", bytesToAlloc, errno, strerror(errno));
+ exit(1);
+ }
+
+ *ptr = tmpPtr;
+
+ return 0;
+}
+
+int HbwAllocAligned(void ** ptr, size_t bytesToAlloc, size_t alignmentBytes)
+{
+ int ret;
+
+ ret = hbw_posix_memalign(ptr, alignmentBytes, bytesToAlloc);
+
+ if (ret) {
+ Error("allocation of %lu bytes in HBM aligned to %lu bytes failed: %d - %s\n", bytesToAlloc, alignmentBytes, errno, strerror(errno));
+ exit(1);
+ }
+
+ return 0;
+}
+
+
+int HbwFree(void ** ptr)
+{
+ Assert(*ptr != NULL);
+
+ hbw_free(*ptr);
+
+ *ptr = NULL;
+
+ return 0;
+}
+
+#endif // HAVE_MEMKIND