73 lines
2.9 KiB
Python
73 lines
2.9 KiB
Python
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from typing import List
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from models.resnet import ResNet50
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from tinygrad.tensor import Tensor
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from tinygrad.ops import LoadOps, Device, Compiled
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from tinygrad.codegen.linearizer import Linearizer
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from tinygrad.features.search import time_linearizer, beam_search
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from tinygrad.helpers import ansilen, DEBUG, getenv
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from tinygrad.lazy import vars_from_ast
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from tinygrad.shape.symbolic import sym_infer
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if __name__ == "__main__":
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mdl = ResNet50()
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seen = set()
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# the device we are optimizing for
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device: Compiled = Device[Device.DEFAULT]
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print(f"optimizing for {Device.DEFAULT}")
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# first model run to init the weights, they are saved in seen
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mdl(Tensor.empty(64, 3, 224, 224)).lazydata.schedule(seen)
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# run model again to get only what changes, these are the kernels of the model
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x = Tensor.empty(64, 3, 224, 224)
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out = mdl(x)
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sched = out.lazydata.schedule(seen)
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sched = [x for x in sched if x.ast.op not in LoadOps]
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# focus on one kernel
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if getenv("KERNEL", -1) >= 0: sched = sched[getenv("KERNEL", -1):getenv("KERNEL", -1)+1]
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# work with the schedule
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total_tm = 0
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running_gflops = 0
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for i,si in enumerate(sched):
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# create output/input buffers (NOTE: bufs_from_lin is slower, so we don't use it. TODO: fix)
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rawbufs = [device.buffer(si.out.st.size(), si.out.dtype)] + [device.buffer(x.st.size(), x.dtype) for x in si.inputs]
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#rawbufs = bufs_from_lin(lin)
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# "linearize" the op into uops in different ways
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lins:List[Linearizer] = []
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# always try hand coded opt
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lin = Linearizer(si.ast, device.linearizer_opts)
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lin.hand_coded_optimizations()
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lins.append(lin)
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# maybe try tensor cores
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lin = Linearizer(si.ast, device.linearizer_opts)
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if lin.apply_tensor_cores():
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lins.append(lin)
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# try a beam search
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if getenv("BEAM"):
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lin = Linearizer(si.ast, device.linearizer_opts)
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lin = beam_search(lin, rawbufs, getenv("BEAM"), bool(getenv("BEAM_ESTIMATE", 1)))
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lins.append(lin)
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# benchmark the programs
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choices = []
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for lin in lins:
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tm = time_linearizer(lin, rawbufs, allow_test_size=False, cnt=10)
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gflops = sym_infer(lin.info.flops, {k:k.min for k in vars_from_ast(lin.ast)})*1e-9/tm
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choices.append((tm, gflops, lin.linearize()))
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# print all kernels
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if DEBUG >= 1: print(f" kernel {i:2d} {lin.display_name+' '*(37-ansilen(lin.display_name))} {str(lin.global_size):18s} {str(lin.local_size):12s} takes {tm*1000:7.2f} ms, {gflops:6.0f} GFLOPS")
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tm, gflops, lin = sorted(choices, key=lambda x: x[0])[0]
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print(f"*** {total_tm*1000:7.2f} ms : kernel {i:2d} {lin.display_name+' '*(37-ansilen(lin.display_name))} {str(lin.global_size):18s} {str(lin.local_size):12s} takes {tm*1000:7.2f} ms, {gflops:6.0f} GFLOPS")
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total_tm += tm
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running_gflops += gflops * tm
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print(f"******* total {total_tm*1000:.2f} ms, {running_gflops/total_tm:6.0f} GFLOPS")
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