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blake: reduce intensity (and fix older devices)

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This commit is contained in:
Tanguy Pruvot 2016-01-27 20:01:42 +01:00
parent 4a7e239d7c
commit 934f0e5054
1 changed files with 5 additions and 2 deletions
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7
Algo256/blake256.cu
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@ -516,7 +516,10 @@ extern "C" int scanhash_blake256(int thr_id, struct work* work, uint32_t max_non
const uint32_t first_nonce = pdata[19]; const uint32_t first_nonce = pdata[19];
uint64_t targetHigh = ((uint64_t*)ptarget)[3]; uint64_t targetHigh = ((uint64_t*)ptarget)[3];
uint32_t intensity = (device_sm[device_map[thr_id]] > 500) ? 31 : 28; int dev_id = device_map[thr_id];
int intensity = (device_sm[dev_id] > 500 && !is_windows()) ? 30 : 26;
if (device_sm[dev_id] < 350) intensity = 22;
uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity); uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity);
if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce); if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);
@ -536,7 +539,7 @@ extern "C" int scanhash_blake256(int thr_id, struct work* work, uint32_t max_non
if (!init[thr_id]) if (!init[thr_id])
{ {
cudaSetDevice(device_map[thr_id]); cudaSetDevice(dev_id);
if (opt_cudaschedule == -1 && gpu_threads == 1) { if (opt_cudaschedule == -1 && gpu_threads == 1) {
cudaDeviceReset(); cudaDeviceReset();
// reduce cpu usage (linux) // reduce cpu usage (linux)