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Whitelist 79x0 cards to prefer no vectors as they perform better without.

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This commit is contained in:
Con Kolivas 2012-01-26 11:44:42 +11:00
parent 4995b7c241
commit d7aac25489
1 changed files with 9 additions and 3 deletions
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12
ocl.c
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@ -322,9 +322,15 @@ _clState *initCl(unsigned int gpu, char *name, size_t nameSize)
/* For some reason 2 vectors is still better even if the card says /* For some reason 2 vectors is still better even if the card says
* otherwise, and many cards lie about their max so use 256 as max * otherwise, and many cards lie about their max so use 256 as max
* unless explicitly set on the command line */ * unless explicitly set on the command line. 79x0 cards perform
if (clState->preferred_vwidth > 1) * better without vectors */
clState->preferred_vwidth = 2; if (clState->preferred_vwidth > 1) {
if (strstr(name, "Tahiti"))
clState->preferred_vwidth = 1;
else
clState->preferred_vwidth = 2;
}
if (opt_vectors) if (opt_vectors)
clState->preferred_vwidth = opt_vectors; clState->preferred_vwidth = opt_vectors;
if (opt_worksize && opt_worksize <= clState->max_work_size) if (opt_worksize && opt_worksize <= clState->max_work_size)