diff --git a/benchmarks/kernels/deepgemm/README.md b/benchmarks/kernels/deepgemm/README.md new file mode 100644 index 000000000000..917e814010f8 --- /dev/null +++ b/benchmarks/kernels/deepgemm/README.md @@ -0,0 +1,129 @@ +# DeepSeek DeepGEMM Kernels Benchmark + +This directory includes benchmarks between DeepSeek's DeepGEMM block fp8 kernels against vLLM's existing triton and CUTLASS-based kernels. + +Currently this just includes dense GEMMs and only works on Hopper GPUs. + +## Setup + +You need to install vLLM in your usual fashion, then install DeepGEMM from source in its own directory: + +``` +git clone --recursive https://github.com/deepseek-ai/DeepGEMM +cd DeepGEMM +python setup.py install +uv pip install -e . +``` + +## Usage + +``` +python benchmark_fp8_block_dense_gemm.py +INFO 02-26 21:55:13 [__init__.py:207] Automatically detected platform cuda. +===== STARTING FP8 GEMM BENCHMARK ===== +PyTorch version: 2.5.1+cu124 +CUDA version: 12.4 +Triton version: 3.1.0 +Using device: NVIDIA H100 80GB HBM3 +WARNING 02-26 21:55:15 [fp8_utils.py:458] Using default W8A8 Block FP8 kernel config. Performance might be sub-optimal! Config file not found at /home/mgoin/code/vllm/vllm/model_executor/layers/quantization/utils/configs/N=4096,K=7168,device_name=NVIDIA_H100_80GB_HBM3,dtype=fp8_w8a8,block_shape=[128,128].json +INFO 02-26 21:55:15 [fp8_utils.py:449] Using configuration from /home/mgoin/code/vllm/vllm/model_executor/layers/quantization/utils/configs/N=7168,K=18432,device_name=NVIDIA_H100_80GB_HBM3,dtype=fp8_w8a8,block_shape=[128,128].json for W8A8 Block FP8 kernel. +WARNING 02-26 21:55:16 [fp8_utils.py:458] Using default W8A8 Block FP8 kernel config. Performance might be sub-optimal! Config file not found at /home/mgoin/code/vllm/vllm/model_executor/layers/quantization/utils/configs/N=18432,K=7168,device_name=NVIDIA_H100_80GB_HBM3,dtype=fp8_w8a8,block_shape=[128,128].json +WARNING 02-26 21:55:17 [fp8_utils.py:458] Using default W8A8 Block FP8 kernel config. Performance might be sub-optimal! Config file not found at /home/mgoin/code/vllm/vllm/model_executor/layers/quantization/utils/configs/N=24576,K=1536,device_name=NVIDIA_H100_80GB_HBM3,dtype=fp8_w8a8,block_shape=[128,128].json +INFO 02-26 21:55:17 [fp8_utils.py:449] Using configuration from /home/mgoin/code/vllm/vllm/model_executor/layers/quantization/utils/configs/N=32768,K=512,device_name=NVIDIA_H100_80GB_HBM3,dtype=fp8_w8a8,block_shape=[128,128].json for W8A8 Block FP8 kernel. +INFO 02-26 21:55:17 [fp8_utils.py:449] Using configuration from /home/mgoin/code/vllm/vllm/model_executor/layers/quantization/utils/configs/N=7168,K=16384,device_name=NVIDIA_H100_80GB_HBM3,dtype=fp8_w8a8,block_shape=[128,128].json for W8A8 Block FP8 kernel. + +===== PERFORMANCE COMPARISON ===== + +DeepGEMM Implementation: ++------+-------+-------+-----------+--------+--------+ +| m | n | k | Time (μs) | TFLOPS | GB/s | ++------+-------+-------+-----------+--------+--------+ +| 8 | 4096 | 7168 | 102.9 | 4.6 | 286.4 | +| 8 | 7168 | 18432 | 70.8 | 29.8 | 1868.8 | +| 8 | 18432 | 7168 | 69.3 | 30.5 | 1911.8 | +| 64 | 4096 | 7168 | 69.1 | 54.4 | 439.0 | +| 64 | 7168 | 18432 | 69.4 | 243.6 | 1933.6 | +| 64 | 18432 | 7168 | 70.4 | 240.3 | 1917.2 | +| 64 | 24576 | 1536 | 70.1 | 68.9 | 584.6 | +| 64 | 32768 | 512 | 68.4 | 31.4 | 307.1 | +| 64 | 7168 | 16384 | 69.5 | 216.3 | 1718.5 | +| 128 | 4096 | 7168 | 141.1 | 53.3 | 222.1 | +| 128 | 7168 | 18432 | 71.9 | 470.5 | 1896.1 | +| 128 | 18432 | 7168 | 69.3 | 488.2 | 1988.2 | +| 1024 | 4096 | 7168 | 89.7 | 670.1 | 502.5 | +| 1024 | 18432 | 7168 | 279.0 | 969.8 | 635.2 | +| 2048 | 4096 | 7168 | 175.1 | 687.0 | 347.4 | +| 4096 | 4096 | 7168 | 335.4 | 717.0 | 275.1 | ++------+-------+-------+-----------+--------+--------+ + +vLLM Triton Implementation: ++------+-------+-------+-----------+--------+--------+--------------+ +| m | n | k | Time (μs) | TFLOPS | GB/s | vs DeepGEMM | ++------+-------+-------+-----------+--------+--------+--------------+ +| 8 | 4096 | 7168 | 74.0 | 6.3 | 398.2 | 1.39x faster | +| 8 | 7168 | 18432 | 89.6 | 23.6 | 1478.1 | 0.79x slower | +| 8 | 18432 | 7168 | 113.2 | 18.7 | 1170.4 | 0.61x slower | +| 64 | 4096 | 7168 | 79.4 | 47.3 | 382.2 | 0.87x slower | +| 64 | 7168 | 18432 | 98.5 | 171.7 | 1363.0 | 0.70x slower | +| 64 | 18432 | 7168 | 119.5 | 141.5 | 1129.4 | 0.59x slower | +| 64 | 24576 | 1536 | 37.6 | 128.4 | 1089.7 | 1.86x faster | +| 64 | 32768 | 512 | 38.7 | 55.5 | 542.6 | 1.77x faster | +| 64 | 7168 | 16384 | 86.1 | 174.5 | 1386.4 | 0.81x slower | +| 128 | 4096 | 7168 | 90.7 | 82.9 | 345.4 | 1.56x faster | +| 128 | 7168 | 18432 | 144.0 | 234.9 | 946.9 | 0.50x slower | +| 128 | 18432 | 7168 | 229.5 | 147.4 | 600.1 | 0.30x slower | +| 1024 | 4096 | 7168 | 242.3 | 248.2 | 186.1 | 0.37x slower | +| 1024 | 18432 | 7168 | 897.8 | 301.4 | 197.4 | 0.31x slower | +| 2048 | 4096 | 7168 | 463.0 | 259.7 | 131.4 | 0.38x slower | +| 4096 | 4096 | 7168 | 901.8 | 266.7 | 102.3 | 0.37x slower | ++------+-------+-------+-----------+--------+--------+--------------+ + +vLLM CUTLASS Implementation: ++------+-------+-------+-----------+--------+--------+--------------+--------------+ +| m | n | k | Time (μs) | TFLOPS | GB/s | vs DeepGEMM | vs Triton | ++------+-------+-------+-----------+--------+--------+--------------+--------------+ +| 8 | 4096 | 7168 | 34.6 | 13.6 | 852.3 | 2.98x faster | 2.14x faster | +| 8 | 7168 | 18432 | 78.9 | 26.8 | 1677.3 | 0.90x slower | 1.13x faster | +| 8 | 18432 | 7168 | 81.2 | 26.0 | 1631.1 | 0.85x slower | 1.39x faster | +| 64 | 4096 | 7168 | 36.9 | 101.9 | 822.9 | 1.87x faster | 2.15x faster | +| 64 | 7168 | 18432 | 87.4 | 193.4 | 1535.2 | 0.79x slower | 1.13x faster | +| 64 | 18432 | 7168 | 85.0 | 199.0 | 1587.6 | 0.83x slower | 1.41x faster | +| 64 | 24576 | 1536 | 28.0 | 172.8 | 1465.8 | 2.51x faster | 1.35x faster | +| 64 | 32768 | 512 | 28.8 | 74.5 | 728.5 | 2.37x faster | 1.34x faster | +| 64 | 7168 | 16384 | 77.9 | 193.0 | 1532.8 | 0.89x slower | 1.11x faster | +| 128 | 4096 | 7168 | 39.1 | 192.4 | 802.0 | 3.61x faster | 2.32x faster | +| 128 | 7168 | 18432 | 93.7 | 360.8 | 1454.2 | 0.77x slower | 1.54x faster | +| 128 | 18432 | 7168 | 85.7 | 394.8 | 1608.0 | 0.81x slower | 2.68x faster | +| 1024 | 4096 | 7168 | 99.7 | 603.1 | 452.2 | 0.90x slower | 2.43x faster | +| 1024 | 18432 | 7168 | 331.3 | 816.7 | 534.9 | 0.84x slower | 2.71x faster | +| 2048 | 4096 | 7168 | 198.3 | 606.6 | 306.7 | 0.88x slower | 2.34x faster | +| 4096 | 4096 | 7168 | 392.2 | 613.2 | 235.3 | 0.86x slower | 2.30x faster | ++------+-------+-------+-----------+--------+--------+--------------+--------------+ + +===== AVERAGE PERFORMANCE ===== ++----------------+------------+----------+---------------+ +| Implementation | Avg TFLOPS | Avg GB/s | Avg Time (ms) | ++----------------+------------+----------+---------------+ +| DeepGEMM | 310.98 | 1052.10 | 0.11 | +| vLLM Triton | 144.30 | 715.60 | 0.23 | +| vLLM CUTLASS | 286.78 | 1076.67 | 0.11 | ++----------------+------------+----------+---------------+ + +===== AVERAGE SPEEDUPS ===== ++-----------------------------+--------------+ +| Comparison | Speedup | ++-----------------------------+--------------+ +| DeepGEMM vs vLLM Triton | 1.71x faster | +| DeepGEMM vs vLLM CUTLASS | 0.94x slower | +| vLLM CUTLASS vs vLLM Triton | 1.84x faster | ++-----------------------------+--------------+ + +===== ACCURACY COMPARISON ===== ++----------------+-----------------------+ +| Implementation | Avg Diff vs Reference | ++----------------+-----------------------+ +| DeepGEMM | 0.000684 | +| vLLM Triton | 0.000684 | +| vLLM CUTLASS | 0.000684 | ++----------------+-----------------------+ +``` diff --git a/benchmarks/kernels/deepgemm/benchmark_fp8_block_dense_gemm.py b/benchmarks/kernels/deepgemm/benchmark_fp8_block_dense_gemm.py new file mode 100644 index 000000000000..7892f126e7d6 --- /dev/null +++ b/benchmarks/kernels/deepgemm/benchmark_fp8_block_dense_gemm.py @@ -0,0 +1,464 @@ +# SPDX-License-Identifier: Apache-2.0 +# fmt: off +# ruff: noqa: E501 +import time + +# Import DeepGEMM functions +import deep_gemm +import torch +import triton +from deep_gemm import calc_diff, ceil_div, get_col_major_tma_aligned_tensor + +# Import vLLM functions +from vllm import _custom_ops as ops +from vllm.model_executor.layers.quantization.utils.fp8_utils import ( + per_token_group_quant_fp8, w8a8_block_fp8_matmul) + + +# Copied from +# https://github.com/deepseek-ai/DeepGEMM/blob/78cacf70d41d15d688bd493ebc85845f7f2a3d5d/tests/test_core.py#L9 +def per_token_cast_to_fp8( + x: torch.Tensor) -> tuple[torch.Tensor, torch.Tensor]: + """Convert tensor to FP8 format with per-token scaling.""" + assert x.dim() == 2 and x.size(1) % 128 == 0 + m, n = x.shape + x_view = x.view(m, -1, 128) + x_amax = x_view.abs().float().amax(dim=2).view(m, -1).clamp(1e-4) + return (x_view * (448.0 / x_amax.unsqueeze(2))).to( + torch.float8_e4m3fn).view(m, n), (x_amax / 448.0).view(m, -1) + + +# Copied from +# https://github.com/deepseek-ai/DeepGEMM/blob/78cacf70d41d15d688bd493ebc85845f7f2a3d5d/tests/test_core.py#L17 +def per_block_cast_to_fp8( + x: torch.Tensor) -> tuple[torch.Tensor, torch.Tensor]: + """Convert tensor to FP8 format with per-block scaling.""" + assert x.dim() == 2 + m, n = x.shape + x_padded = torch.zeros((ceil_div(m, 128) * 128, ceil_div(n, 128) * 128), + dtype=x.dtype, + device=x.device) + x_padded[:m, :n] = x + x_view = x_padded.view(-1, 128, x_padded.size(1) // 128, 128) + x_amax = x_view.abs().float().amax(dim=(1, 3), keepdim=True).clamp(1e-4) + x_scaled = (x_view * (448.0 / x_amax)).to(torch.float8_e4m3fn) + return x_scaled.view_as(x_padded)[:m, :n].contiguous(), ( + x_amax / 448.0).view(x_view.size(0), x_view.size(2)) + + +def benchmark_shape(m: int, + n: int, + k: int, + warmup: int = 100, + repeat: int = 10000, + verbose: bool = False) -> dict: + """Benchmark all implementations for a specific (m, n, k) shape.""" + if verbose: + print(f"\n=== Benchmarking shape: m={m}, n={n}, k={k} ===") + + # Create test tensors + A = torch.randn((m, k), device='cuda', dtype=torch.bfloat16) + B = torch.randn((n, k), device='cuda', dtype=torch.bfloat16) + + # Reference result in BF16 + torch.cuda.synchronize() + C_ref = A @ B.t() + + # Pre-quantize B for all implementations + # (weights can be pre-quantized offline) + B_deepgemm, B_scale_deepgemm = per_block_cast_to_fp8(B) + B_vllm, B_scale_vllm = per_block_cast_to_fp8(B) + + # Block size configuration + block_size = [128, 128] + + # Pre-quantize A for all implementations + A_deepgemm, A_scale_deepgemm = per_token_cast_to_fp8(A) + A_scale_deepgemm = get_col_major_tma_aligned_tensor(A_scale_deepgemm) + C_deepgemm = torch.empty((m, n), device='cuda', dtype=torch.bfloat16) + A_vllm, A_scale_vllm = per_token_group_quant_fp8(A, block_size[1]) + A_vllm_cutlass, A_scale_vllm_cutlass = per_token_group_quant_fp8( + A, block_size[1], column_major_scales=True) + + # === DeepGEMM Implementation === + def deepgemm_gemm(): + # A quantization is inside the loop as it depends on activations + # A_deepgemm, A_scale_deepgemm = per_token_cast_to_fp8(A) + # A_deepgemm, A_scale_deepgemm = per_token_group_quant_fp8( + # A, block_size[1]) + # A_scale_aligned = get_col_major_tma_aligned_tensor(A_scale_deepgemm) + # C_deepgemm = torch.empty((m, n), device='cuda', dtype=torch.bfloat16) + deep_gemm.gemm_fp8_fp8_bf16_nt((A_deepgemm, A_scale_deepgemm), + (B_deepgemm, B_scale_deepgemm), + C_deepgemm) + return C_deepgemm + + # === vLLM Triton Implementation === + def vllm_triton_gemm(): + # A quantization is inside the loop as it depends on activations + # A_vllm, A_scale_vllm = per_token_group_quant_fp8(A, block_size[1]) + return w8a8_block_fp8_matmul(A_vllm, + B_vllm, + A_scale_vllm, + B_scale_vllm, + block_size, + output_dtype=torch.bfloat16) + + # === vLLM CUTLASS Implementation === + def vllm_cutlass_gemm(): + # A quantization is inside the loop as it depends on activations + # A_vllm_cutlass, A_scale_vllm_cutlass = per_token_group_quant_fp8( + # A, block_size[1], column_major_scales=True) + return ops.cutlass_scaled_mm(A_vllm_cutlass, + B_vllm.T, + scale_a=A_scale_vllm_cutlass, + scale_b=B_scale_vllm.T, + out_dtype=torch.bfloat16) + + # Run correctness check first + if verbose: + print("Running correctness check...") + C_deepgemm = deepgemm_gemm() + C_vllm_triton = vllm_triton_gemm() + C_vllm_cutlass = vllm_cutlass_gemm() + + deepgemm_diff = calc_diff(C_deepgemm, C_ref) + vllm_triton_diff = calc_diff(C_vllm_triton, C_ref) + vllm_cutlass_diff = calc_diff(C_vllm_cutlass, C_ref) + + if verbose: + print(f"DeepGEMM vs Reference difference: {deepgemm_diff:.6f}") + print(f"vLLM Triton vs Reference difference: {vllm_triton_diff:.6f}") + print(f"vLLM CUTLASS vs Reference difference: {vllm_cutlass_diff:.6f}") + print("vLLM Triton vs DeepGEMM difference: " + f"{calc_diff(C_vllm_triton, C_deepgemm):.6f}") + print("vLLM CUTLASS vs DeepGEMM difference: " + f"{calc_diff(C_vllm_cutlass, C_deepgemm):.6f}") + + # Benchmark implementations + implementations = { + "DeepGEMM": deepgemm_gemm, + "vLLM Triton": vllm_triton_gemm, + "vLLM CUTLASS": vllm_cutlass_gemm + } + + benchmark_results = { + "shape": { + "m": m, + "n": n, + "k": k + }, + "implementations": {} + } + + for name, func in implementations.items(): + # Warmup + for _ in range(warmup): + func() + torch.cuda.synchronize() + + # Timing loop + torch.cuda.synchronize() + start = time.time() + for _ in range(repeat): + func() + torch.cuda.synchronize() + end = time.time() + + # Calculate timing and TFLOPS + avg_time_ms = (end - start) / repeat * 1000 + avg_time_us = avg_time_ms * 1000 + tflops = 2 * m * n * k / (avg_time_ms * 1e-3) / 1e12 + gb_s = (m * k + k * n + m * n * 2) / 1e9 / (avg_time_ms * 1e-3) + + benchmark_results["implementations"][name] = { + "time_ms": avg_time_ms, + "time_us": avg_time_us, + "tflops": tflops, + "gb_s": gb_s, + "diff": { + "DeepGEMM": + 0.0 if name == "DeepGEMM" else calc_diff(func(), C_deepgemm), + "Reference": + deepgemm_diff if name == "DeepGEMM" else + (vllm_triton_diff + if name == "vLLM Triton" else vllm_cutlass_diff) + } + } + + if verbose: + print( + f"{name}: {avg_time_ms:.3f} ms, {tflops:.2f} TFLOPS, {gb_s:.2f} GB/s" + ) + + # Calculate speedups + baseline = benchmark_results["implementations"]["DeepGEMM"]["time_ms"] + for name, data in benchmark_results["implementations"].items(): + if name != "DeepGEMM": + speedup = baseline / data["time_ms"] + benchmark_results["implementations"][name][ + "speedup_vs_deepgemm"] = speedup + if verbose: + print(f"DeepGEMM is {1/speedup:.2f}x " + f"{'faster' if 1/speedup > 1 else 'slower'} than {name}") + + vllm_triton_time = benchmark_results["implementations"]["vLLM Triton"][ + "time_ms"] + vllm_cutlass_time = benchmark_results["implementations"]["vLLM CUTLASS"][ + "time_ms"] + cutlass_vs_triton = vllm_triton_time / vllm_cutlass_time + benchmark_results["implementations"]["vLLM CUTLASS"][ + "speedup_vs_triton"] = cutlass_vs_triton + if verbose: + print( + f"vLLM CUTLASS is {cutlass_vs_triton:.2f}x " + f"{'faster' if cutlass_vs_triton > 1 else 'slower'} than vLLM Triton" + ) + + return benchmark_results + + +def format_table_row(values, widths): + """Format a row with specified column widths.""" + return "| " + " | ".join(f"{val:{w}}" + for val, w in zip(values, widths)) + " |" + + +def print_table(headers, rows, title=None): + """Print a table with headers and rows.""" + if title: + print(f"\n{title}") + + # Calculate column widths based on headers and data + widths = [ + max(len(str(h)), max(len(str(row[i])) for row in rows)) + for i, h in enumerate(headers) + ] + + # Create separator line + separator = "+-" + "-+-".join("-" * w for w in widths) + "-+" + + # Print table + print(separator) + print(format_table_row(headers, widths)) + print(separator) + for row in rows: + print(format_table_row(row, widths)) + print(separator) + + +def format_speedup(value): + """Format speedup value with indicator if it's faster or slower.""" + return f"{value:.2f}x {'faster' if value > 1.0 else 'slower'}" + + +def run_benchmarks(verbose: bool = False): + """Run benchmarks for a set of common shapes.""" + print("===== STARTING FP8 GEMM BENCHMARK =====") + + # Make sure we're using the GPU + if not torch.cuda.is_available(): + print("CUDA not available! Tests require GPU.") + return + + # Print system information + print(f"PyTorch version: {torch.__version__}") + print(f"CUDA version: {torch.version.cuda}") + print(f"Triton version: {triton.__version__}") + print(f"Using device: {torch.cuda.get_device_name()}") + + # Enable TF32 for better performance + torch.backends.cuda.matmul.allow_tf32 = True + torch.backends.cudnn.allow_tf32 = True + + # Set seeds for reproducibility + torch.manual_seed(42) + torch.cuda.manual_seed(42) + + # Define benchmark shapes (m, n, k) + shapes = [ + (8, 4096, 7168), + (8, 7168, 18432), + (8, 18432, 7168), + (64, 4096, 7168), + (64, 7168, 18432), + (64, 18432, 7168), + (64, 24576, 1536), + (64, 32768, 512), + (64, 7168, 16384), + (128, 4096, 7168), + (128, 7168, 18432), + (128, 18432, 7168), + (1024, 4096, 7168), + (1024, 18432, 7168), + (2048, 4096, 7168), + (4096, 4096, 7168), + ] + shapes = [ + # (64, 2112, 7168), + (64, 24576, 1536), + (64, 32768, 512), + (64, 7168, 16384), + (64, 4096, 7168), + (64, 7168, 2048), + # (128, 2112, 7168), + (128, 24576, 1536), + (128, 32768, 512), + (128, 7168, 16384), + (128, 4096, 7168), + (128, 7168, 2048), + # (4096, 2112, 7168), + (4096, 24576, 1536), + (4096, 32768, 512), + (4096, 7168, 16384), + (4096, 4096, 7168), + (4096, 7168, 2048), + ] + + all_results = [] + for m, n, k in shapes: + result = benchmark_shape(m, n, k, verbose=verbose) + all_results.append(result) + + # Print results in a nicely formatted table + print("\n===== PERFORMANCE COMPARISON =====") + + # Print DeepGEMM table + deepgemm_headers = ["m", "n", "k", "Time (μs)", "TFLOPS", "GB/s"] + deepgemm_rows = [] + for result in all_results: + shape = result["shape"] + impl_data = result["implementations"]["DeepGEMM"] + deepgemm_rows.append([ + shape["m"], shape["n"], shape["k"], f"{impl_data['time_us']:.1f}", + f"{impl_data['tflops']:.1f}", f"{impl_data['gb_s']:.1f}" + ]) + + print_table(deepgemm_headers, + deepgemm_rows, + title="DeepGEMM Implementation:") + + # Print vLLM Triton table + triton_headers = [ + "m", "n", "k", "Time (μs)", "TFLOPS", "GB/s", "vs DeepGEMM" + ] + triton_rows = [] + for result in all_results: + shape = result["shape"] + impl_data = result["implementations"]["vLLM Triton"] + speedup = impl_data.get("speedup_vs_deepgemm", 1.0) + triton_rows.append([ + shape["m"], shape["n"], shape["k"], f"{impl_data['time_us']:.1f}", + f"{impl_data['tflops']:.1f}", f"{impl_data['gb_s']:.1f}", + format_speedup(speedup) + ]) + + print_table(triton_headers, + triton_rows, + title="vLLM Triton Implementation:") + + # Print vLLM CUTLASS table + cutlass_headers = [ + "m", "n", "k", "Time (μs)", "TFLOPS", "GB/s", "vs DeepGEMM", + "vs Triton" + ] + cutlass_rows = [] + for result in all_results: + shape = result["shape"] + impl_data = result["implementations"]["vLLM CUTLASS"] + vs_deepgemm = impl_data.get("speedup_vs_deepgemm", 1.0) + vs_triton = impl_data.get("speedup_vs_triton", 1.0) + cutlass_rows.append([ + shape["m"], shape["n"], shape["k"], f"{impl_data['time_us']:.1f}", + f"{impl_data['tflops']:.1f}", f"{impl_data['gb_s']:.1f}", + format_speedup(vs_deepgemm), + format_speedup(vs_triton) + ]) + + print_table(cutlass_headers, + cutlass_rows, + title="vLLM CUTLASS Implementation:") + + # Calculate and print averages + print("\n===== AVERAGE PERFORMANCE =====") + + implementations = ["DeepGEMM", "vLLM Triton", "vLLM CUTLASS"] + avg_metrics = { + impl: { + "tflops": 0, + "gb_s": 0, + "time_ms": 0 + } + for impl in implementations + } + + for result in all_results: + for impl in implementations: + impl_data = result["implementations"][impl] + avg_metrics[impl]["tflops"] += impl_data["tflops"] + avg_metrics[impl]["gb_s"] += impl_data["gb_s"] + avg_metrics[impl]["time_ms"] += impl_data["time_ms"] + + num_shapes = len(all_results) + avg_headers = ["Implementation", "Avg TFLOPS", "Avg GB/s", "Avg Time (ms)"] + avg_rows = [] + + for impl in implementations: + avg_tflops = avg_metrics[impl]["tflops"] / num_shapes + avg_mem_bw = avg_metrics[impl]["gb_s"] / num_shapes + avg_time = avg_metrics[impl]["time_ms"] / num_shapes + avg_rows.append([ + impl, f"{avg_tflops:.2f}", f"{avg_mem_bw:.2f}", f"{avg_time:.2f}" + ]) + + print_table(avg_headers, avg_rows) + + # Calculate average speedups + avg_speedups = { + "DeepGEMM vs vLLM Triton": 0, + "DeepGEMM vs vLLM CUTLASS": 0, + "vLLM CUTLASS vs vLLM Triton": 0 + } + + for result in all_results: + deepgemm_time = result["implementations"]["DeepGEMM"]["time_ms"] + vllm_triton_time = result["implementations"]["vLLM Triton"]["time_ms"] + vllm_cutlass_time = result["implementations"]["vLLM CUTLASS"][ + "time_ms"] + + avg_speedups[ + "DeepGEMM vs vLLM Triton"] += vllm_triton_time / deepgemm_time + avg_speedups[ + "DeepGEMM vs vLLM CUTLASS"] += vllm_cutlass_time / deepgemm_time + avg_speedups[ + "vLLM CUTLASS vs vLLM Triton"] += vllm_triton_time / vllm_cutlass_time + + print("\n===== AVERAGE SPEEDUPS =====") + speedup_headers = ["Comparison", "Speedup"] + speedup_rows = [] + for comparison, total in avg_speedups.items(): + avg_speedup = total / num_shapes + status = "faster" if avg_speedup > 1 else "slower" + speedup_rows.append([comparison, f"{avg_speedup:.2f}x {status}"]) + + print_table(speedup_headers, speedup_rows) + + # Average accuracy comparison + print("\n===== ACCURACY COMPARISON =====") + avg_diff = {impl: 0 for impl in implementations} + + for result in all_results: + for impl in implementations: + avg_diff[impl] += result["implementations"][impl]["diff"][ + "Reference"] + + diff_headers = ["Implementation", "Avg Diff vs Reference"] + diff_rows = [] + for impl in implementations: + diff_rows.append([impl, f"{avg_diff[impl] / num_shapes:.6f}"]) + + print_table(diff_headers, diff_rows) + + +if __name__ == "__main__": + run_benchmarks(verbose=False)