PowerPC: Sgemm Optimization#15
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This patch improves GEMM for FP32 Data Type on PowerPC Implements GEMM on large blocks with configurable block size mc, nc, kc (default: 256, 256, 256). Packing Function optimized to access blocks as per memory layout. GEMM Optimized to work on larger blocks. Isolated Packing from GEMM Operations for better MMA utilization. Verified functionality and correctness uing llama-cli and stand alone test case (performs matmul and compares final mattrix C result with base). Performance Testing: Observed 50% ~ 70% improvement in Prompt Processing Speed mesured using llama-bench with Meta-Llama3-8B FP32 Model. Similar gains observed with Mistral-7b-Instruct-v0.3 Model. model Size Params Backend Threads Test Patch Base llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp512 98.58 60.3 llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp1024 95.88 57.36 llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp2048 85.46 53.26 llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp4096 68.66 45.78 llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp6144 57.35 40.44 25 ~ 30% improvement in llama-batched-bench with Metla-Llama3-8B in Prompt Processing Speed for large prompts (256, 512, 1024, 2048, 4096)tokens with various batch sizes ( 1, 2, 4, 8, 16) Signed-off-by: root <root@cummins-lib-perf4.pok.stglabs.ibm.com>
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This patch improves GEMM for FP32 Data Type on PowerPC
Implements GEMM on large blocks with configurable block size mc, nc, kc (default: 256, 256, 256).
Packing Function optimized to access blocks as per memory layout.
GEMM Optimized to work on larger blocks
Isolated Packing from GEMM Operations for better MMA utilization.
Verified functionality and correctness uing llama-cli and stand alone test case (performs matmul and compared final mattrix C result with base).
Performance Testing:
Observed 50 ~ 70 % improvement in Prompt Processing Speed mesured using llama-bench with Meta-Llama3-8B FP32 Model. Similar gains observed with Mistral-7b-Instruct-v0.3 Model.
model Size Params Backend Threads Test Patch Base
llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp512 98.58 60.3
llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp1024 95.88 57.36
llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp2048 85.46 53.26
llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp4096 68.66 45.78
llama 8B all F32 29.92 GiB 8.03 B CPU 20 pp6144 57.35 40.44
25 ~ 30% improvement in llama-batched-bench with Metla-Llama3-8B in Prompt Processing Speed for large prompts (256, 512, 1024, 2048, 4096)tokens with various batch sizes ( 1, 2, 4, 8, 16)
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