18 lines
536 B
Python
18 lines
536 B
Python
import time
|
|
import torch
|
|
|
|
for dtype in [torch.float16, torch.float32]:
|
|
for N in [256, 512, 1024, 2048, 4096]:
|
|
FLOPS = N*N*N*2
|
|
|
|
b = torch.rand((N,N), dtype=dtype).cuda()
|
|
c = torch.rand((N,N), dtype=dtype).cuda()
|
|
|
|
def torch_prog(b, c):
|
|
st = time.perf_counter()
|
|
a = b@c
|
|
torch.cuda.synchronize()
|
|
return time.perf_counter() - st
|
|
tm = min([torch_prog(b, c) for _ in range(20)])
|
|
print(f"{N*N:10d} {tm*1e6:9.2f} us, would be {FLOPS*1e-9/tm:9.2f} GFLOPS {N:4d}x{N:4d}x{N:4d} matmul in {dtype}")
|