| Loop Id: 20 | Module: attention-gcc-skl512 | Source: attention_v2.cpp:26-33 | Coverage: 0.02% |
|---|
| Loop Id: 20 | Module: attention-gcc-skl512 | Source: attention_v2.cpp:26-33 | Coverage: 0.02% |
|---|
0x244c XOR %R11D,%R11D |
0x244f NOP |
(19) 0x2450 MOV %R11D,%ESI |
(19) 0x2453 VXORPD %XMM4,%XMM4,%XMM4 |
(19) 0x2457 XOR %EAX,%EAX |
(19) 0x2459 NOPL (%RAX) |
(18) 0x2460 LEA (%RAX,%RCX,1),%R10D |
(18) 0x2464 INC %EAX |
(18) 0x2466 VCVTSS2SD (%R15,%R10,4),%XMM1,%XMM0 |
(18) 0x246c MOV %ESI,%R10D |
(18) 0x246f VMOVAPD %XMM0,%XMM2 |
(18) 0x2473 ADD %R8D,%ESI |
(18) 0x2476 VCVTSS2SD (%R13,%R10,4),%XMM1,%XMM0 |
(18) 0x247d VFMADD231SD %XMM0,%XMM2,%XMM4 |
(18) 0x2482 CMP %R9D,%EAX |
(18) 0x2485 JB 2460 |
(19) 0x2487 LEA (%R11,%RDI,1),%EAX |
(19) 0x248b INC %R11D |
(19) 0x248e VCVTSD2SS %XMM4,%XMM4,%XMM4 |
(19) 0x2492 VMOVSS %XMM4,(%R14,%RAX,4) |
(19) 0x2498 CMP %R8D,%R11D |
(19) 0x249b JB 2450 |
0x249d INC %EDX |
0x249f ADD %R8D,%EDI |
0x24a2 ADD %R9D,%ECX |
0x24a5 CMP %R9D,%EDX |
0x24a8 JB 244c |
/home/eoseret/Applications/llm-attention/attention_v2.cpp: 26 - 33 |
-------------------------------------------------------------------------------- |
26: for (unsigned int i = 0; i < M; ++i) { |
27: for (unsigned int j = 0; j < N; ++j) { //vectorized |
28: double sum = 0.0; |
29: #pragma clang loop vectorize(enable) |
30: for (unsigned int k = 0; k < K; ++k) { //vectorized |
31: sum += (double)A[i * K + k] * (double)B[k * N + j]; |
32: } |
33: C[i * N + j] = alpha * static_cast<float>(sum); |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | new_allocator.h:183 | attention-gcc-skl512 |
| min | med | avg | max |
|---|---|---|---|
| Percentile Index | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
|---|---|---|---|---|---|---|---|---|---|---|
| Value |
| min | med | avg | max |
|---|---|---|---|
| Percentile Index | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
|---|---|---|---|---|---|---|---|---|---|---|
| Value |
| Path / |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 16.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.50 |
| Bottlenecks | micro-operation queue, |
| Function | main |
| Source | attention_v2.cpp:26-27 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 1.50 |
| CQA cycles if no scalar integer | 1.50 |
| CQA cycles if FP arith vectorized | 1.50 |
| CQA cycles if fully vectorized | 0.09 |
| Front-end cycles | 1.50 |
| P0 cycles | 1.00 |
| P1 cycles | 1.00 |
| P2 cycles | 0.00 |
| P3 cycles | 0.00 |
| P4 cycles | 0.00 |
| P5 cycles | 1.00 |
| P6 cycles | 1.00 |
| P7 cycles | 0.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 1 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 7.00 |
| Nb uops | 6.00 |
| Nb loads | 0.00 |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 0.00 |
| Nb FLOP add-sub | 0.00 |
| Nb FLOP mul | 0.00 |
| Nb FLOP fma | 0.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 0.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 0.00 |
| Bytes stored | 0.00 |
| Stride 0 | 0.00 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 2.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 0.00 |
| Vectorization ratio load | NA |
| Vectorization ratio store | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 6.25 |
| Vector-efficiency ratio load | NA |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | 6.25 |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 6.25 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 16.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.50 |
| Bottlenecks | micro-operation queue, |
| Function | main |
| Source | attention_v2.cpp:26-27 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 1.50 |
| CQA cycles if no scalar integer | 1.50 |
| CQA cycles if FP arith vectorized | 1.50 |
| CQA cycles if fully vectorized | 0.09 |
| Front-end cycles | 1.50 |
| P0 cycles | 1.00 |
| P1 cycles | 1.00 |
| P2 cycles | 0.00 |
| P3 cycles | 0.00 |
| P4 cycles | 0.00 |
| P5 cycles | 1.00 |
| P6 cycles | 1.00 |
| P7 cycles | 0.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 1 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 7.00 |
| Nb uops | 6.00 |
| Nb loads | 0.00 |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 0.00 |
| Nb FLOP add-sub | 0.00 |
| Nb FLOP mul | 0.00 |
| Nb FLOP fma | 0.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 0.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 0.00 |
| Bytes stored | 0.00 |
| Stride 0 | 0.00 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 2.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 0.00 |
| Vectorization ratio load | NA |
| Vectorization ratio store | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 6.25 |
| Vector-efficiency ratio load | NA |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | 6.25 |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 6.25 |
| Path / |
| Function | main |
| Source file and lines | attention_v2.cpp:26-33 |
| Module | attention-gcc-skl512 |
| nb instructions | 7 |
| nb uops | 6 |
| loop length | 17 |
| used x86 registers | 6 |
| used mmx registers | 0 |
| used xmm registers | 0 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 1.50 cycles |
| front end | 1.50 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 |
| cycles | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 1.50 |
| Dispatch | 1.00 |
| Data deps. | 1.00 |
| Overall L1 | 1.50 |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 6% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 6% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 6% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XOR %R11D,%R11D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| NOP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| INC %EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD %R8D,%EDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| ADD %R9D,%ECX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| CMP %R9D,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JB 244c <main+0x110c> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| Function | main |
| Source file and lines | attention_v2.cpp:26-33 |
| Module | attention-gcc-skl512 |
| nb instructions | 7 |
| nb uops | 6 |
| loop length | 17 |
| used x86 registers | 6 |
| used mmx registers | 0 |
| used xmm registers | 0 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 1.50 cycles |
| front end | 1.50 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 |
| cycles | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 1.50 |
| Dispatch | 1.00 |
| Data deps. | 1.00 |
| Overall L1 | 1.50 |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 6% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 6% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 6% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XOR %R11D,%R11D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| NOP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| INC %EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD %R8D,%EDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| ADD %R9D,%ECX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| CMP %R9D,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JB 244c <main+0x110c> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
