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Code Issues Releases Wiki Activity

Be a bit more sensible while try to evaluate available memory

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This commit is contained in:
jsteube 2018-08-06 00:20:39 +02:00
parent e67195aa11
commit 86fc587182
1 changed files with 17 additions and 5 deletions
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22
src/opencl.c
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@ -4274,30 +4274,42 @@ int opencl_session_begin (hashcat_ctx_t *hashcat_ctx)
// The idea here is to try to evaluate available memory by allocating it till it errors
#define MAX_ALLOC_CHECKS_CNT 8192
#define MAX_ALLOC_CHECKS_SIZE (32 * 1024 * 1024)
#define MAX_ALLOC_CHECKS_SIZE (64 * 1024 * 1024)
cl_mem *tmp_device = (cl_mem *) hccalloc (MAX_ALLOC_CHECKS_CNT, sizeof (cl_mem));
char *tmp_host = (char *) hcmalloc (MAX_ALLOC_CHECKS_SIZE);
int c;
u64 c;
for (c = 0; c < MAX_ALLOC_CHECKS_CNT; c++)
{
if (((c + 1) * MAX_ALLOC_CHECKS_SIZE) >= device_param->device_global_mem) break;
cl_int CL_err;
OCL_PTR *ocl = opencl_ctx->ocl;
tmp_device[c] = ocl->clCreateBuffer (device_param->context, CL_MEM_READ_ONLY, MAX_ALLOC_CHECKS_SIZE, NULL, &CL_err);
if (CL_err != CL_SUCCESS) break;
if (CL_err != CL_SUCCESS)
{
c--;
break;
}
CL_err = ocl->clEnqueueReadBuffer (device_param->command_queue, tmp_device[c], CL_TRUE, 0, MAX_ALLOC_CHECKS_SIZE, tmp_host, 0, NULL, NULL);
if (CL_err != CL_SUCCESS) break;
if (CL_err != CL_SUCCESS)
{
c--;
break;
}
}
int r;
u64 r;
for (r = 0; r < c; r++)
{