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45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
#!/usr/bin/env python3
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import os, sys, time
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from tinygrad.runtime.support.system import RemotePCIDevice
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LAT_N_RUNS = 500
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THROUGHPUT_N_RUNS = 8
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SIZES = [4, 1 << 10, 8 << 20]
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if __name__ == "__main__":
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os.environ["REMOTE"] = sys.argv[1] if len(sys.argv) > 1 else os.environ.get("REMOTE", "127.0.0.1:6667")
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# choose any amd/nv gpu.
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devs = RemotePCIDevice.remote_list(0x1002, ((0, (0,)),), 0) or RemotePCIDevice.remote_list(0x10de, ((0, (0,)),), 0x03)
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if not devs: raise RuntimeError("no GPU found on remote")
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pci = RemotePCIDevice("BN", devs[0])
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print(f"connected to {os.environ['REMOTE']}, device: {devs[0]}\n")
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# latency
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for _ in range(10): pci.read_config(0, 4)
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st = time.perf_counter()
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for _ in range(LAT_N_RUNS): pci.read_config(0, 4)
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lat = (time.perf_counter() - st) / LAT_N_RUNS
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print(f"RPC latency: {lat*1e6:.1f} us ({1/lat:,.0f} ops/sec)\n")
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# throughput
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sysmem, _ = pci.alloc_sysmem(max(SIZES))
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print(f"{'size':>10s} {'write MB/s':>10s} {'read MB/s':>10s}")
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for sz in SIZES:
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data = b'\x01' * sz
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for _ in range(5): sysmem[0:sz] = data
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st = time.perf_counter()
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for _ in range(THROUGHPUT_N_RUNS): sysmem[0:sz] = data
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pci.read_config(0, 4) # flush, since writes are posted
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w = (time.perf_counter() - st) / THROUGHPUT_N_RUNS
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for _ in range(5): sysmem[0:sz]
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st = time.perf_counter()
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for _ in range(THROUGHPUT_N_RUNS): sysmem[0:sz]
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r = (time.perf_counter() - st) / THROUGHPUT_N_RUNS
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sfx, div = [('B',1),('K',1<<10),('M',1<<20)][[sz>=1<<10,sz>=1<<20,sz>=1<<30].count(True)]
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print(f"{sz/div:>9.4g}{sfx} {sz/w/1e6:>10.1f} {sz/r/1e6:>10.1f}")
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