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TC adjustments for nscrypt.

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unknown 2014-02-18 10:27:18 +01:00
parent 850f5149dd
commit a7e46721f6
1 changed files with 14 additions and 6 deletions
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20
ocl.c
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@ -484,20 +484,28 @@ _clState *initCl(unsigned int gpu, char *name, size_t nameSize)
} else
cgpu->lookup_gap = cgpu->opt_lg;
// TODO: check if this params can be the same for both scrypt and nscrypt
unsigned int sixtyfours = use_nscrypt ? ((cgpu->max_alloc*cgpu->lookup_gap) / (2048*128) / 64 - 1) : (cgpu->max_alloc / 131072 / 64 - 1);
if (!cgpu->opt_tc) {
unsigned int sixtyfours;
sixtyfours = cgpu->max_alloc / 131072 / 64 - 1;
cgpu->thread_concurrency = sixtyfours * 64;
if (cgpu->shaders && cgpu->thread_concurrency > cgpu->shaders) {
cgpu->thread_concurrency -= cgpu->thread_concurrency % cgpu->shaders;
if (cgpu->thread_concurrency > cgpu->shaders * 5)
cgpu->thread_concurrency = cgpu->shaders * 5;
size_t tc_limit = cgpu->shaders * use_nscrypt ? 11 : 5;
if (cgpu->thread_concurrency > tc_limit)
cgpu->thread_concurrency = tc_limit;
}
applog(LOG_DEBUG, "GPU %d: selecting thread concurrency of %d", gpu, (int)(cgpu->thread_concurrency));
} else
} else {
cgpu->thread_concurrency = cgpu->opt_tc;
}
// TODO: check if this works with standard scrypt, too
if (use_nscrypt) {
if (((cgpu->thread_concurrency * (2048*128)) / cgpu->lookup_gap) > cgpu->max_alloc) {
cgpu->thread_concurrency = sixtyfours * 64;
applog(LOG_INFO, "GPU %d: thread concurrency too high, set to %d", gpu, (int)(cgpu->thread_concurrency));
}
}
FILE *binaryfile;
size_t *binary_sizes;