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53 #include "thread_mpi/threads.h"
55 #include "gromacs/utility/alignedallocator.h"
56 #include "gromacs/utility/dir_separator.h"
57 #include "gromacs/utility/fatalerror.h"
59 # include "gromacs/utility/basenetwork.h"
60 # include "gromacs/utility/gmxmpi.h"
63 static gmx_bool g_bOverAllocDD = FALSE;
64 static tMPI_Thread_mutex_t g_over_alloc_mutex = TMPI_THREAD_MUTEX_INITIALIZER;
66 void* save_malloc(const char* name, const char* file, int line, size_t size)
77 if ((p = malloc(size)) == nullptr)
79 gmx_fatal(errno, __FILE__, __LINE__,
80 "Not enough memory. Failed to malloc %" PRId64
82 "(called from file %s, line %d)",
83 static_cast<int64_t>(size), name, file, line);
85 (void)memset(p, 0, size);
90 void* save_calloc(const char* name, const char* file, int line, size_t nelem, size_t elsize)
95 if ((nelem == 0) || (elsize == 0))
101 #ifdef PRINT_ALLOC_KB
102 if (nelem * elsize >= PRINT_ALLOC_KB * 1024)
104 int rank = gmx_node_rank();
105 printf("Allocating %.1f MB for %s (called from file %s, line %d on %d)\n",
106 nelem * elsize / 1048576.0, name, file, line, rank);
109 #if GMX_BROKEN_CALLOC
110 /* emulate calloc(3) with malloc/memset on machines with
111 a broken calloc, e.g. in -lgmalloc on cray xt3. */
112 if ((p = malloc((size_t)nelem * (size_t)elsize)) == NULL)
114 gmx_fatal(errno, __FILE__, __LINE__,
115 "Not enough memory. Failed to calloc %" PRId64 " elements of size %" PRId64
116 " for %s\n(called from file %s, line %d)",
117 (int64_t)nelem, (int64_t)elsize, name, file, line);
119 memset(p, 0, (size_t)(nelem * elsize));
121 if ((p = calloc(nelem, elsize)) == nullptr)
123 gmx_fatal(errno, __FILE__, __LINE__,
124 "Not enough memory. Failed to calloc %" PRId64 " elements of size %" PRId64
125 " for %s\n(called from file %s, line %d)",
126 static_cast<int64_t>(nelem), static_cast<int64_t>(elsize), name, file, line);
133 void* save_realloc(const char* name, const char* file, int line, void* ptr, size_t nelem, size_t elsize)
136 size_t size = nelem * elsize;
141 save_free(name, file, line, ptr);
145 #ifdef PRINT_ALLOC_KB
146 if (size >= PRINT_ALLOC_KB * 1024)
148 int rank = gmx_node_rank();
149 printf("Reallocating %.1f MB for %s (called from file %s, line %d on %d)\n",
150 size / 1048576.0, name, file, line, rank);
159 p = realloc(ptr, size);
163 gmx_fatal(errno, __FILE__, __LINE__,
164 "Not enough memory. Failed to realloc %zu bytes for %s, %s=%p\n"
165 "(called from file %s, line %d)",
166 size, name, name, ptr, file, line);
172 void save_free(const char gmx_unused* name, const char gmx_unused* file, int gmx_unused line, void* ptr)
180 /* Pointers allocated with this routine should only be freed
181 * with save_free_aligned, however this will only matter
182 * on systems that lack posix_memalign() and memalign() when
183 * freeing memory that needed to be adjusted to achieve
184 * the necessary alignment. */
185 void* save_malloc_aligned(const char* name, const char* file, int line, size_t nelem, size_t elsize, size_t alignment)
191 gmx_fatal(errno, __FILE__, __LINE__,
192 "Cannot allocate aligned memory with alignment of zero!\n(called from file %s, "
197 size_t alignmentSize = gmx::AlignedAllocationPolicy::alignment();
198 if (alignment > alignmentSize)
200 gmx_fatal(errno, __FILE__, __LINE__,
201 "Cannot allocate aligned memory with alignment > %zu bytes\n(called from file "
203 alignmentSize, file, line);
207 if (nelem == 0 || elsize == 0)
213 #ifdef PRINT_ALLOC_KB
214 if (nelem * elsize >= PRINT_ALLOC_KB * 1024)
216 int rank = gmx_node_rank();
217 printf("Allocating %.1f MB for %s (called from file %s, line %d on %d)\n",
218 nelem * elsize / 1048576.0, name, file, line, rank);
222 p = gmx::AlignedAllocationPolicy::malloc(nelem * elsize);
226 gmx_fatal(errno, __FILE__, __LINE__,
227 "Not enough memory. Failed to allocate %zu aligned elements of size %zu for "
228 "%s\n(called from file %s, line %d)",
229 nelem, elsize, name, file, line);
235 void* save_calloc_aligned(const char* name, const char* file, int line, size_t nelem, size_t elsize, size_t alignment)
237 void* aligned = save_malloc_aligned(name, file, line, nelem, elsize, alignment);
238 if (aligned != nullptr)
240 memset(aligned, 0, static_cast<size_t>(nelem * elsize));
245 /* This routine can NOT be called with any pointer */
246 void save_free_aligned(const char gmx_unused* name, const char gmx_unused* file, int gmx_unused line, void* ptr)
248 gmx::AlignedAllocationPolicy::free(ptr);
251 void set_over_alloc_dd(gmx_bool set)
253 tMPI_Thread_mutex_lock(&g_over_alloc_mutex);
254 /* we just make sure that we don't set this at the same time.
255 We don't worry too much about reading this rarely-set variable */
256 g_bOverAllocDD = set;
257 tMPI_Thread_mutex_unlock(&g_over_alloc_mutex);
260 int over_alloc_dd(int n)
264 return static_cast<int>(OVER_ALLOC_FAC * n + 100);