Files
StarPilot/tinygrad_repo/extra/gemm/torch_gemm.py
T
firestar5683 22a8575199 Vendor dependencies and resources for standalone builds
Keep official openpilot ancestry and dependency licenses. Store resources directly in Git, remove LFS setup requirements, and leave the downloadable big model outside the source tree.
2026-10-03 21:01:18 +00:00

31 lines
1.0 KiB
Python

import os
os.environ["NVIDIA_TF32_OVERRIDE"] = "0"
os.environ["MKL_NUM_THREADS"] = "1"
os.environ["NUMEXPR_NUM_THREADS"] = "1"
os.environ["OMP_NUM_THREADS"] = "1"
import time
import torch
torch.set_num_threads(1)
from tinygrad.helpers import getenv
CUDA = getenv("CUDA", 1)
MPS = getenv("MPS", 0)
if getenv("FP16_ACC"): torch.backends.cuda.matmul.allow_fp16_accumulation = True
for dtype in [torch.float32, torch.float16, torch.bfloat16]:
for N in [256, 512, 1024, 2048, 4096] + ([6144, 8192] if getenv("BIG") else []):
FLOPS = N*N*N*2
b = torch.rand((N,N), dtype=dtype)
c = torch.rand((N,N), dtype=dtype)
if CUDA: b,c = b.cuda(),c.cuda()
if MPS: b,c = b.to('mps'),c.to('mps')
def torch_prog(b, c):
st = time.perf_counter()
a = b@c
if CUDA: torch.cuda.synchronize()
if MPS: torch.mps.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}")