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Code Issues Releases Wiki Activity

No longer need to warm-up OpenCL device for benchmark with new thread settings

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This commit is contained in:
Jens Steube 2018-02-09 23:41:30 +01:00
parent 75c4d09301
commit fd89cac052
1 changed files with 8 additions and 16 deletions
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24
src/opencl.c
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@ -2460,6 +2460,8 @@ int run_cracker (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, co
if (CL_rc == -1) return -1; if (CL_rc == -1) return -1;
} }
/*
// this writes speed cache, we dont want it
if (user_options->speed_only == true) if (user_options->speed_only == true)
{ {
for (int i = 0; i < 16; i++) for (int i = 0; i < 16; i++)
@ -2471,6 +2473,7 @@ int run_cracker (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, co
hc_timer_set (&device_param->timer_speed); hc_timer_set (&device_param->timer_speed);
} }
*/
const int rc = choose_kernel (hashcat_ctx, device_param, highest_pw_len, pws_cnt, fast_iteration, salt_pos); const int rc = choose_kernel (hashcat_ctx, device_param, highest_pw_len, pws_cnt, fast_iteration, salt_pos);
@ -4002,25 +4005,14 @@ int opencl_session_begin (hashcat_ctx_t *hashcat_ctx)
} }
// We can't have SIMD in kernels where we have an unknown final password length // We can't have SIMD in kernels where we have an unknown final password length
// It also turns out that pure kernels (that have a higher register pressure)
// actually run faster on scalar GPU (like 1080) without SIMD
if ((hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL) == 0) if ((hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL) == 0)
{ {
if (hashconfig->attack_exec == ATTACK_EXEC_INSIDE_KERNEL) if (device_param->device_type & CL_DEVICE_TYPE_GPU)
{ {
if (user_options_extra->attack_kern == ATTACK_KERN_STRAIGHT) vector_width = 1;
{
vector_width = 1;
}
else if (user_options_extra->attack_kern == ATTACK_KERN_COMBI)
{
vector_width = 1;
}
}
else
{
// there's currently no slow kernel that supports NEW_SIMD_CODE which
// has unknown final password length in _loop kernel
// vector_width = 1;
} }
} }
@ -4372,7 +4364,7 @@ int opencl_session_begin (hashcat_ctx_t *hashcat_ctx)
// this value should represent a reasonable amount of memory a host system has per GPU. // this value should represent a reasonable amount of memory a host system has per GPU.
// note we're allocating 3 blocks of that size. // note we're allocating 3 blocks of that size.
#define PWS_SPACE (512 * 1024 * 1024) #define PWS_SPACE (64 * 1024 * 1024)
// sometimes device_global_mem and device_maxmem_alloc reported back from the opencl runtime are a bit inaccurate. // sometimes device_global_mem and device_maxmem_alloc reported back from the opencl runtime are a bit inaccurate.
// let's add some extra space just to be sure. // let's add some extra space just to be sure.