Commit bb31988347b52956215d15aa1b9e9c3dd0d09908
2012-04-25T11:41:35
Detect poorly performing combination of SDK and phatk kernel and add verbose warning at startup.
diff --git a/ocl.c b/ocl.c
index 39c8844..2b8155c 100644
--- a/ocl.c
+++ b/ocl.c
@@ -372,8 +372,17 @@ _clState *initCl(unsigned int gpu, char *name, size_t nameSize)
clState->chosen_kernel = KL_PHATK;
}
gpus[gpu].kernel = clState->chosen_kernel;
- } else
+ } else {
clState->chosen_kernel = gpus[gpu].kernel;
+ if (clState->chosen_kernel == KL_PHATK &&
+ (strstr(vbuff, "844.4") || strstr(vbuff, "851.4") ||
+ strstr(vbuff, "831.4") || strstr(vbuff, "898.1"))) {
+ applog(LOG_WARNING, "WARNING: You have selected the phatk kernel.");
+ applog(LOG_WARNING, "You are running SDK 2.6 which performs poorly with this kernel.");
+ applog(LOG_WARNING, "Downgrade your SDK and delete any .bin files before starting again.");
+ applog(LOG_WARNING, "Or allow cgminer to automatically choose a more suitable kernel.");
+ }
+ }
/* 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