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[v0.02] Experimental algorithm to detect memory type finished. Information gathering finished

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Dr-Noob
2021-08-15 21:22:41 +02:00
parent 7d505dcc07
commit 2687fa5016
6 changed files with 91 additions and 15 deletions
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23
src/cuda/cuda.cpp
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@@ -28,21 +28,20 @@ struct topology* get_topology_info(struct gpu_info* gpu, cudaDeviceProp prop) {
}
MEMTYPE guess_memory_type(struct memory* mem, struct gpu_info* gpu) {
// 1. Guess data rate
int32_t data_rate = -1;
int32_t dr8 = abs((mem->freq/8) - gpu->freq);
int32_t dr4 = abs((mem->freq/4) - gpu->freq);
int32_t dr2 = abs((mem->freq/2) - gpu->freq);
int32_t dr1 = abs((mem->freq/1) - gpu->freq);
// Guess clock multiplier
int32_t clk_mul = -1;
int32_t clk8 = abs((mem->freq/8) - gpu->freq);
int32_t clk4 = abs((mem->freq/4) - gpu->freq);
int32_t clk2 = abs((mem->freq/2) - gpu->freq);
int32_t clk1 = abs((mem->freq/1) - gpu->freq);
int32_t min = mem->freq;
if(min > dr8) { data_rate = 8; min = dr8; }
if(min > dr4) { data_rate = 4; min = dr4; }
if(min > dr2) { data_rate = 2; min = dr2; }
if(min > dr1) { data_rate = 1; min = dr1; }
if(min > clk8) { clk_mul = 8; min = clk8; }
if(min > clk4) { clk_mul = 4; min = clk4; }
if(min > clk2) { clk_mul = 2; min = clk2; }
if(min > clk1) { clk_mul = 1; min = clk1; }
printf("data_rate=%d\n", data_rate);
return MEMTYPE_GDDR6;
return guess_memtype_from_cmul_and_uarch(clk_mul, gpu->arch);
}
struct memory* get_memory_info(struct gpu_info* gpu, cudaDeviceProp prop) {