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52 #include "gromacs/utility/alignedallocator.h"
53 #include "gromacs/utility/fatalerror.h"
55 # include "gromacs/utility/basenetwork.h"
56 # include "gromacs/utility/gmxmpi.h"
59 // NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
60 static bool g_bOverAllocDD = false;
61 // NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
62 static std::mutex g_overAllocMutex;
64 void* save_malloc(const char* name, const char* file, int line, size_t size)
74 if ((p = malloc(size)) == nullptr)
79 "Not enough memory. Failed to malloc %" PRId64
81 "(called from file %s, line %d)",
82 static_cast<int64_t>(size),
87 (void)memset(p, 0, size);
92 void* save_calloc(const char* name, const char* file, int line, size_t nelem, size_t elsize)
96 if ((nelem == 0) || (elsize == 0))
102 #ifdef PRINT_ALLOC_KB
103 if (nelem * elsize >= PRINT_ALLOC_KB * 1024)
105 int rank = gmx_node_rank();
106 printf("Allocating %.1f MB for %s (called from file %s, line %d on %d)\n",
107 nelem * elsize / 1048576.0,
114 #if GMX_BROKEN_CALLOC
115 /* emulate calloc(3) with malloc/memset on machines with
116 a broken calloc, e.g. in -lgmalloc on cray xt3. */
117 if ((p = malloc((size_t)nelem * (size_t)elsize)) == NULL)
122 "Not enough memory. Failed to calloc %" PRId64 " elements of size %" PRId64
123 " for %s\n(called from file %s, line %d)",
130 memset(p, 0, (size_t)(nelem * elsize));
132 if ((p = calloc(nelem, elsize)) == nullptr)
137 "Not enough memory. Failed to calloc %" PRId64 " elements of size %" PRId64
138 " for %s\n(called from file %s, line %d)",
139 static_cast<int64_t>(nelem),
140 static_cast<int64_t>(elsize),
150 void* save_realloc(const char* name, const char* file, int line, void* ptr, size_t nelem, size_t elsize)
153 size_t size = nelem * elsize;
157 save_free(name, file, line, ptr);
161 #ifdef PRINT_ALLOC_KB
162 if (size >= PRINT_ALLOC_KB * 1024)
164 int rank = gmx_node_rank();
165 printf("Reallocating %.1f MB for %s (called from file %s, line %d on %d)\n",
179 p = realloc(ptr, size);
186 "Not enough memory. Failed to realloc %zu bytes for %s, %s=%p\n"
187 "(called from file %s, line %d)",
199 void save_free(const char gmx_unused* name, const char gmx_unused* file, int gmx_unused line, void* ptr)
207 /* Pointers allocated with this routine should only be freed
208 * with save_free_aligned, however this will only matter
209 * on systems that lack posix_memalign() and memalign() when
210 * freeing memory that needed to be adjusted to achieve
211 * the necessary alignment. */
212 void* save_malloc_aligned(const char* name, const char* file, int line, size_t nelem, size_t elsize, size_t alignment)
221 "Cannot allocate aligned memory with alignment of zero!\n(called from file %s, "
227 size_t alignmentSize = gmx::AlignedAllocationPolicy::alignment();
228 if (alignment > alignmentSize)
233 "Cannot allocate aligned memory with alignment > %zu bytes\n(called from file "
241 if (nelem == 0 || elsize == 0)
247 #ifdef PRINT_ALLOC_KB
248 if (nelem * elsize >= PRINT_ALLOC_KB * 1024)
250 int rank = gmx_node_rank();
251 printf("Allocating %.1f MB for %s (called from file %s, line %d on %d)\n",
252 nelem * elsize / 1048576.0,
260 p = gmx::AlignedAllocationPolicy::malloc(nelem * elsize);
267 "Not enough memory. Failed to allocate %zu aligned elements of size %zu for "
268 "%s\n(called from file %s, line %d)",
279 void* save_calloc_aligned(const char* name, const char* file, int line, size_t nelem, size_t elsize, size_t alignment)
281 void* aligned = save_malloc_aligned(name, file, line, nelem, elsize, alignment);
282 if (aligned != nullptr)
284 memset(aligned, 0, static_cast<size_t>(nelem * elsize));
289 /* This routine can NOT be called with any pointer */
290 void save_free_aligned(const char gmx_unused* name, const char gmx_unused* file, int gmx_unused line, void* ptr)
292 gmx::AlignedAllocationPolicy::free(ptr);
295 void set_over_alloc_dd(bool set)
297 std::lock_guard<std::mutex> lock(g_overAllocMutex);
298 /* we just make sure that we don't set this at the same time.
299 We don't worry too much about reading this rarely-set variable */
300 g_bOverAllocDD = set;
303 int over_alloc_dd(int n)
307 return static_cast<int>(OVER_ALLOC_FAC * n + 100);