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Awni Hannun
313
benchmarks/python/comparative/bench_mlx.py
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313
benchmarks/python/comparative/bench_mlx.py
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import argparse
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import math
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import os
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import time
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import mlx.core as mx
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def int_or_list(x):
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try:
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return int(x)
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except ValueError:
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return [int(xi) for xi in x.split(",")]
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def none_or_list(x):
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if x == "":
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return None
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else:
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return [int(xi) for xi in x.split(",")]
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def bench(f, *args):
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for i in range(10):
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f(*args)
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s = time.time()
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for i in range(100):
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f(*args)
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e = time.time()
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return e - s
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def matmul_square(x):
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y = x
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for i in range(10):
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y = y @ x
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mx.eval(y)
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return y
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def matmul(x, y):
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ys = []
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for i in range(10):
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ys.append(x @ y)
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mx.eval(ys)
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def conv1d(x, y):
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ys = []
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for i in range(10):
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ys.append(mx.conv1d(x, y))
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mx.eval(ys)
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def conv2d(x, y):
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ys = []
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for i in range(10):
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ys.append(mx.conv2d(x, y))
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mx.eval(ys)
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def binary(op, x, y):
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for i in range(100):
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y = getattr(mx, op)(x, y)
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mx.eval(y)
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def reduction(op, axis, x):
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ys = []
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for i in range(100):
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ys.append(getattr(mx, op)(x, axis=axis))
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mx.eval(ys)
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def softmax(axis, x):
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ys = []
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for i in range(100):
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ex = mx.exp(x - mx.max(x, axis=axis, keepdims=True))
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y = ex / mx.sum(ex, axis=axis, keepdims=True)
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ys.append(y)
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mx.eval(ys)
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def softmax_fused(axis, x):
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ys = []
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for i in range(100):
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y = mx.softmax(x, axis=axis)
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ys.append(y)
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mx.eval(ys)
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def relu(x):
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y = x
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for i in range(100):
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y = mx.maximum(y, 0)
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mx.eval(y)
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def scalar_mult(x):
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y = x
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for i in range(100):
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y = y * (1.0 / (1 + i))
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mx.eval(y)
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def cross_entropy(targets, x):
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ys = []
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for i in range(100):
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y = mx.logsumexp(x, axis=-1, keepdims=True) - mx.take_along_axis(
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x, mx.reshape(targets, (-1, 1)), axis=-1
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)
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ys.append(mx.mean(y))
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mx.eval(ys)
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def logsumexp(axis, x):
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ys = []
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for i in range(100):
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ys.append(mx.logsumexp(x, axis=axis))
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mx.eval(ys)
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def linear(w, b, x):
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ys = []
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for i in range(10):
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ys.append(x @ mx.transpose(w, (1, 0)) + b)
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mx.eval(ys)
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def rope(x):
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*_, N, D = x.shape
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ys = []
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for i in range(10):
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shape = x.shape
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x = mx.reshape(x, (-1, N, D))
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positions = mx.arange(N)
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freqs = mx.exp(mx.arange(0.0, D // 2) / math.log(10000 / (D // 2 - 1)))
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theta = mx.reshape(positions, (-1, 1)) * mx.reshape(freqs, (1, -1))
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costheta = mx.cos(theta)
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sintheta = mx.sin(theta)
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x1 = x[..., ::2]
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x2 = x[..., 1::2]
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rx1 = x1 * costheta - x2 * sintheta
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rx2 = x1 * sintheta + x2 * costheta
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y = mx.concatenate([rx1[..., None], rx2[..., None]], axis=-1)
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y = mx.reshape(y, (-1, N, D))
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ys.append(y)
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mx.eval(ys)
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def concatenate(axis, x, y):
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ys = []
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for i in range(10):
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ys.append(mx.concatenate([x, y], axis=axis))
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mx.eval(ys)
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def cumsum(axis, x):
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ys = []
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for i in range(10):
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ys.append(mx.cumsum(x, axis))
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mx.eval(ys)
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def sort(axis, x):
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ys = []
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for i in range(10):
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ys.append(mx.sort(x, axis))
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mx.eval(ys)
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def topk(axis, x):
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k = x.shape[axis] // 3
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ys = []
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for i in range(10):
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ys.append(mx.topk(x, k, axis))
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mx.eval(ys)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument("benchmark", help="Choose the benchmark to run")
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parser.add_argument(
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"--size",
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default=[(1024, 1024)],
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type=lambda x: list(map(int, x.split("x"))),
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help="Set the matrix size",
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action="append",
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)
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parser.add_argument(
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"--axis",
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default=[1],
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type=int_or_list,
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help="Set a reduction axis",
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action="append",
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)
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parser.add_argument(
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"--transpose",
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type=none_or_list,
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default=[],
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help="Permute the matrix",
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action="append",
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)
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parser.add_argument(
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"--print-pid", action="store_true", help="Print the PID and pause"
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)
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parser.add_argument("--cpu", action="store_true", help="Use the CPU")
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parser.add_argument(
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"--fused", action="store_true", help="Use fused functions where possible"
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)
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parser.add_argument(
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"--dtype", choices=["float32", "float16", "bfloat16"], default="float32"
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)
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args = parser.parse_args()
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if len(args.size) > 1:
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args.size.pop(0)
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if len(args.axis) > 1:
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args.axis.pop(0)
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if args.print_pid:
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print(os.getpid())
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input("Press enter to run")
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if args.cpu:
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mx.set_default_device(mx.cpu)
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else:
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mx.set_default_device(mx.gpu)
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dtype = dict(float32=mx.float32, float16=mx.float16, bfloat16=mx.bfloat16)[
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args.dtype
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]
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xs = []
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for size in args.size:
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xs.append(mx.random.normal(size).astype(dtype))
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for i, t in enumerate(args.transpose):
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if t is None:
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continue
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xs[i] = mx.transpose(xs[i], t)
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mx.eval(xs)
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x = xs[0]
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axis = args.axis[0]
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if args.benchmark == "matmul_square":
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print(bench(matmul_square, x))
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elif args.benchmark == "matmul":
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print(bench(matmul, *xs))
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elif args.benchmark == "linear":
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print(bench(linear, *xs))
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elif args.benchmark == "sum_axis":
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print(bench(reduction, "sum", axis, x))
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elif args.benchmark == "sum_all":
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print(bench(reduction, "sum", None, x))
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elif args.benchmark == "argmax":
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print(bench(reduction, "argmax", axis, x))
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elif args.benchmark == "add":
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print(bench(binary, "add", *xs))
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elif args.benchmark == "mul":
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print(bench(binary, "multiply", *xs))
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elif args.benchmark == "softmax":
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if args.fused:
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print(bench(softmax_fused, axis, x))
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else:
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print(bench(softmax, axis, x))
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elif args.benchmark == "relu":
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print(bench(relu, x))
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elif args.benchmark == "scalar_mul":
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print(bench(scalar_mult, x))
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elif args.benchmark == "cross_entropy":
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if len(size) != 2:
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raise ValueError("Error: [cross_entropy] benchmark requires a 2 dim size")
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targets = mx.zeros((len(x),), dtype=mx.uint32)
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print(bench(cross_entropy, targets, x))
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elif args.benchmark == "logsumexp":
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print(bench(logsumexp, axis, x))
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elif args.benchmark == "rope":
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print(bench(rope, x))
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elif args.benchmark == "concatenate":
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print(bench(concatenate, axis, *xs))
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elif args.benchmark == "cumsum":
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print(bench(cumsum, axis, *xs))
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elif args.benchmark == "conv1d":
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print(bench(conv1d, *xs))
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elif args.benchmark == "conv2d":
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print(bench(conv2d, *xs))
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elif args.benchmark == "sort":
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print(bench(sort, axis, x))
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elif args.benchmark == "topk":
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print(bench(topk, axis, x))
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else:
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raise ValueError("Unknown benchmark")
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