| Loop Id: 34 | Module: attention-gcc-skl256 | Source: attention_v2.cpp:43-61 | Coverage: 0.18% |
|---|
| Loop Id: 34 | Module: attention-gcc-skl256 | Source: attention_v2.cpp:43-61 | Coverage: 0.18% |
|---|
0x2d00 MOV %R13D,%ECX |
0x2d03 MOV %R13D,%ESI |
0x2d06 MOV %R12,%RAX |
0x2d09 SHR $0x3,%ECX |
0x2d0c MOV %ECX,%EDX |
0x2d0e SAL $0x5,%RDX |
0x2d12 ADD %R12,%RDX |
0x2d15 NOPL (%RAX) |
(33) 0x2d18 VMAXPS (%RAX),%YMM0,%YMM0 |
(33) 0x2d1c ADD $0x20,%RAX |
(33) 0x2d20 CMP %RDX,%RAX |
(33) 0x2d23 JNE 2d18 |
0x2d25 VEXTRACTF32X4 $0x1,%YMM0,%XMM3 |
0x2d2c LEA (,%RCX,8),%EAX |
0x2d33 VMAXPS %XMM0,%XMM3,%XMM1 |
0x2d37 VMOVHLPS %XMM1,%XMM1,%XMM2 |
0x2d3b VMAXPS %XMM1,%XMM2,%XMM2 |
0x2d3f VSHUFPS $0x55,%XMM2,%XMM2,%XMM1 |
0x2d44 VMAXPS %XMM2,%XMM1,%XMM1 |
0x2d48 CMP %ESI,%EAX |
0x2d4a JE 2dad |
0x2dad MOVL $0,-0x34(%RBP) |
0x2db4 MOV %R12,%R14 |
0x2db7 VMOVSS %XMM1,-0x38(%RBP) |
0x2dbc VZEROUPPER |
0x2dbf NOP |
(31) 0x2dc0 VMOVSS (%R14),%XMM0 |
(31) 0x2dc5 ADD $0x4,%R14 |
(31) 0x2dc9 VSUBSS -0x38(%RBP),%XMM0,%XMM0 |
(31) 0x2dce CALL 1110 <expf@plt> |
(31) 0x2dd3 VADDSS -0x34(%RBP),%XMM0,%XMM5 |
(31) 0x2dd8 VMOVSS %XMM5,-0x34(%RBP) |
(31) 0x2ddd CMP %RBX,%R14 |
(31) 0x2de0 JNE 2dc0 |
0x2de2 MOV -0x58(%RBP),%RAX |
0x2de6 MOV -0x48(%RBP),%RDI |
0x2dea MOV %R12,%R15 |
0x2ded LEA (%RAX,%RDI,4),%R14 |
0x2df1 NOPL (%RAX) |
(32) 0x2df8 VMOVSS (%R15),%XMM0 |
(32) 0x2dfd ADD $0x4,%R15 |
(32) 0x2e01 ADD $0x4,%R14 |
(32) 0x2e05 VSUBSS -0x38(%RBP),%XMM0,%XMM0 |
(32) 0x2e0a CALL 1110 <expf@plt> |
(32) 0x2e0f VDIVSS -0x34(%RBP),%XMM0,%XMM0 |
(32) 0x2e14 VMOVSS %XMM0,-0x4(%R14) |
(32) 0x2e1a CMP %RBX,%R15 |
(32) 0x2e1d JNE 2df8 |
0x2e1f MOV -0x3c(%RBP),%EAX |
0x2e22 MOV -0x40(%RBP),%EDI |
0x2e25 LEA 0x1(%RAX),%ECX |
0x2e28 CMP %ECX,%EDI |
0x2e2a JE 2ea8 |
0x2e2c MOV -0x78(%RBP),%RSI |
0x2e30 MOV -0x50(%RBP),%R15 |
0x2e34 INC %R13 |
0x2e37 MOV %EDI,%EAX |
0x2e39 SUB %R13D,%EAX |
0x2e3c MOV -0x70(%RBP),%R14 |
0x2e40 ADD -0x68(%RBP),%R12 |
0x2e44 MOV %ECX,-0x38(%RBP) |
0x2e47 ADD %RSI,-0x48(%RBP) |
0x2e4b MOV %R15,%RDI |
0x2e4e LEA 0x4(,%RAX,4),%RDX |
0x2e56 XOR %ESI,%ESI |
0x2e58 CALL 1050 <memset@plt> |
0x2e5d MOV -0x38(%RBP),%ECX |
0x2e60 MOV -0x60(%RBP),%RAX |
0x2e64 ADD %R14,%R15 |
0x2e67 VMOVSS -0x34(%RBP),%XMM2 |
0x2e6c ADD %R14,%RBX |
0x2e6f VBROADCASTSS 0x118c(%RIP),%YMM0 |
0x2e78 MOV %R15,-0x50(%RBP) |
0x2e7c MOV %ECX,-0x3c(%RBP) |
0x2e7f VMOVSS %XMM2,-0x8(%RAX,%R13,4) |
0x2e86 CMPL $0x6,-0x3c(%RBP) |
0x2e8a JG 2d00 |
/home/eoseret/Applications/llm-attention/attention_v2.cpp: 43 - 61 |
-------------------------------------------------------------------------------- |
43: for (int row = 0; row < N; ++row) { |
44: const float *S_row = &S[row * N]; |
45: |
46: float max_val = -FLT_MAX; |
47: for (int idx = 0; idx <= row; ++idx) // vectorised |
48: if (S_row[idx] > max_val) max_val = S_row[idx]; |
49: |
50: float sum = 0.0f; |
51: #pragma clang loop vectorize(enable) |
52: for (int idx = 0; idx <= row; ++idx) // vectorised |
53: sum += expf(S_row[idx] - max_val); |
54: |
55: for (int idx = 0; idx <= row; ++idx) //vectorised |
56: P[row * N + idx] = expf(S_row[idx] - max_val) / sum; |
57: |
58: for (int idx = row + 1; idx < N; ++idx) |
59: P[row * N + idx] = 0.0f; |
60: |
61: D[row] = sum; |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | attention_v2.cpp:283 | attention-gcc-skl256 |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | main | new_allocator.h:183 | attention-gcc-skl256 |
| 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 | 3.39 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 10.67 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.91 |
| Bottlenecks | micro-operation queue, |
| Function | softmax(float const*, float*, float*, int) |
| Source | attention_v2.cpp:43-43,attention_v2.cpp:46-47,attention_v2.cpp:50-52,attention_v2.cpp:58-61 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 15.25 |
| CQA cycles if no scalar integer | 4.50 |
| CQA cycles if FP arith vectorized | 15.25 |
| CQA cycles if fully vectorized | 1.43 |
| Front-end cycles | 15.25 |
| P0 cycles | 6.50 |
| P1 cycles | 6.50 |
| P2 cycles | 7.33 |
| P3 cycles | 7.33 |
| P4 cycles | 8.00 |
| P5 cycles | 6.50 |
| P6 cycles | 6.50 |
| P7 cycles | 7.33 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | NA |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 56.00 |
| Nb uops | 61.00 |
| Nb loads | 14.00 |
| Nb stores | 7.00 |
| Nb stack references | 11.00 |
| 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 | 8.13 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 88.00 |
| Bytes stored | 36.00 |
| Stride 0 | NA |
| Stride 1 | NA |
| Stride n | NA |
| Stride unknown | NA |
| Stride indirect | NA |
| Vectorization ratio all | 22.58 |
| Vectorization ratio load | 0.00 |
| Vectorization ratio store | 0.00 |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 43.75 |
| Vector-efficiency ratio all | 12.50 |
| Vector-efficiency ratio load | 10.71 |
| Vector-efficiency ratio store | 8.04 |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | 12.50 |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 14.84 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 3.39 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 10.67 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.91 |
| Bottlenecks | micro-operation queue, |
| Function | softmax(float const*, float*, float*, int) |
| Source | attention_v2.cpp:43-43,attention_v2.cpp:46-47,attention_v2.cpp:50-52,attention_v2.cpp:58-61 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 15.25 |
| CQA cycles if no scalar integer | 4.50 |
| CQA cycles if FP arith vectorized | 15.25 |
| CQA cycles if fully vectorized | 1.43 |
| Front-end cycles | 15.25 |
| P0 cycles | 6.50 |
| P1 cycles | 6.50 |
| P2 cycles | 7.33 |
| P3 cycles | 7.33 |
| P4 cycles | 8.00 |
| P5 cycles | 6.50 |
| P6 cycles | 6.50 |
| P7 cycles | 7.33 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | NA |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 56.00 |
| Nb uops | 61.00 |
| Nb loads | 14.00 |
| Nb stores | 7.00 |
| Nb stack references | 11.00 |
| 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 | 8.13 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 88.00 |
| Bytes stored | 36.00 |
| Stride 0 | NA |
| Stride 1 | NA |
| Stride n | NA |
| Stride unknown | NA |
| Stride indirect | NA |
| Vectorization ratio all | 22.58 |
| Vectorization ratio load | 0.00 |
| Vectorization ratio store | 0.00 |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 43.75 |
| Vector-efficiency ratio all | 12.50 |
| Vector-efficiency ratio load | 10.71 |
| Vector-efficiency ratio store | 8.04 |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | 12.50 |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 14.84 |
| Path / |
| Function | softmax(float const*, float*, float*, int) |
| Source file and lines | attention_v2.cpp:43-61 |
| Module | attention-gcc-skl256 |
| nb instructions | 56 |
| nb uops | 61 |
| loop length | 217 |
| used x86 registers | 11 |
| used mmx registers | 0 |
| used xmm registers | 4 |
| used ymm registers | 1 |
| used zmm registers | 0 |
| nb stack references | 11 |
| micro-operation queue | 15.25 cycles |
| front end | 15.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 6.50 | 6.50 | 7.33 | 7.33 | 8.00 | 6.50 | 6.50 | 7.33 |
| cycles | 6.50 | 6.50 | 7.33 | 7.33 | 8.00 | 6.50 | 6.50 | 7.33 |
| Cycles executing div or sqrt instructions | NA |
| Front-end | 15.25 |
| Dispatch | 8.00 |
| Overall L1 | 15.25 |
| all | 4% |
| load | 0% |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 11% |
| all | 60% |
| load | 0% |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 85% |
| all | 22% |
| load | 0% |
| store | 0% |
| 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 | 43% |
| all | 10% |
| load | 12% |
| store | 8% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 10% |
| all | 16% |
| load | 6% |
| store | 6% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 20% |
| all | 12% |
| load | 10% |
| store | 8% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 14% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOV %R13D,%ECX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV %R13D,%ESI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| MOV %R12,%RAX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| SHR $0x3,%ECX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| MOV %ECX,%EDX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| SAL $0x5,%RDX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| ADD %R12,%RDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| VEXTRACTF32X4 $0x1,%YMM0,%XMM3 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 1 | vect (25.0%) |
| LEA (,%RCX,8),%EAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| VMAXPS %XMM0,%XMM3,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| VMOVHLPS %XMM1,%XMM1,%XMM2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | vect (12.5%) |
| VMAXPS %XMM1,%XMM2,%XMM2 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| VSHUFPS $0x55,%XMM2,%XMM2,%XMM1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | vect (25.0%) |
| VMAXPS %XMM2,%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| CMP %ESI,%EAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2dad <_Z7softmaxPKfPfS1_i+0x13d> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOVL $0,-0x34(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 2 | 1 | scal (6.3%) |
| MOV %R12,%R14 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| VMOVSS %XMM1,-0x38(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VZEROUPPER | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | vect (25.0%) |
| NOP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV -0x58(%RBP),%RAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV -0x48(%RBP),%RDI | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV %R12,%R15 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| LEA (%RAX,%RDI,4),%R14 | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV -0x3c(%RBP),%EAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV -0x40(%RBP),%EDI | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| LEA 0x1(%RAX),%ECX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| CMP %ECX,%EDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2ea8 <_Z7softmaxPKfPfS1_i+0x238> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV -0x78(%RBP),%RSI | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV -0x50(%RBP),%R15 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| INC %R13 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV %EDI,%EAX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| SUB %R13D,%EAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV -0x70(%RBP),%R14 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| ADD -0x68(%RBP),%R12 | 1 | 0.25 | 0.25 | 0.50 | 0.50 | 0 | 0.25 | 0.25 | 0 | 1 | 0.50 | scal (12.5%) |
| MOV %ECX,-0x38(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| ADD %RSI,-0x48(%RBP) | 2 | 0.25 | 0.25 | 0.83 | 0.83 | 1 | 0.25 | 0.25 | 0.33 | 5 | 1 | scal (12.5%) |
| MOV %R15,%RDI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| LEA 0x4(,%RAX,4),%RDX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| XOR %ESI,%ESI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| CALL 1050 <memset@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| MOV -0x38(%RBP),%ECX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV -0x60(%RBP),%RAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| ADD %R14,%R15 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| VMOVSS -0x34(%RBP),%XMM2 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| ADD %R14,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| VBROADCASTSS 0x118c(%RIP),%YMM0 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 5 | 0.50 | scal (6.3%) |
| MOV %R15,-0x50(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %ECX,-0x3c(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VMOVSS %XMM2,-0x8(%RAX,%R13,4) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| CMPL $0x6,-0x3c(%RBP) | 1 | 0.25 | 0.25 | 0.50 | 0.50 | 0 | 0.25 | 0.25 | 0 | 1 | 0.50 | N/A |
| JG 2d00 <_Z7softmaxPKfPfS1_i+0x90> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| Function | softmax(float const*, float*, float*, int) |
| Source file and lines | attention_v2.cpp:43-61 |
| Module | attention-gcc-skl256 |
| nb instructions | 56 |
| nb uops | 61 |
| loop length | 217 |
| used x86 registers | 11 |
| used mmx registers | 0 |
| used xmm registers | 4 |
| used ymm registers | 1 |
| used zmm registers | 0 |
| nb stack references | 11 |
| micro-operation queue | 15.25 cycles |
| front end | 15.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 6.50 | 6.50 | 7.33 | 7.33 | 8.00 | 6.50 | 6.50 | 7.33 |
| cycles | 6.50 | 6.50 | 7.33 | 7.33 | 8.00 | 6.50 | 6.50 | 7.33 |
| Cycles executing div or sqrt instructions | NA |
| Front-end | 15.25 |
| Dispatch | 8.00 |
| Overall L1 | 15.25 |
| all | 4% |
| load | 0% |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 11% |
| all | 60% |
| load | 0% |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 85% |
| all | 22% |
| load | 0% |
| store | 0% |
| 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 | 43% |
| all | 10% |
| load | 12% |
| store | 8% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 10% |
| all | 16% |
| load | 6% |
| store | 6% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 20% |
| all | 12% |
| load | 10% |
| store | 8% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 14% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOV %R13D,%ECX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV %R13D,%ESI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| MOV %R12,%RAX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| SHR $0x3,%ECX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| MOV %ECX,%EDX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| SAL $0x5,%RDX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| ADD %R12,%RDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| VEXTRACTF32X4 $0x1,%YMM0,%XMM3 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 1 | vect (25.0%) |
| LEA (,%RCX,8),%EAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| VMAXPS %XMM0,%XMM3,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| VMOVHLPS %XMM1,%XMM1,%XMM2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | vect (12.5%) |
| VMAXPS %XMM1,%XMM2,%XMM2 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| VSHUFPS $0x55,%XMM2,%XMM2,%XMM1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | vect (25.0%) |
| VMAXPS %XMM2,%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| CMP %ESI,%EAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2dad <_Z7softmaxPKfPfS1_i+0x13d> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOVL $0,-0x34(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 2 | 1 | scal (6.3%) |
| MOV %R12,%R14 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| VMOVSS %XMM1,-0x38(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VZEROUPPER | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | vect (25.0%) |
| NOP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV -0x58(%RBP),%RAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV -0x48(%RBP),%RDI | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV %R12,%R15 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| LEA (%RAX,%RDI,4),%R14 | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV -0x3c(%RBP),%EAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV -0x40(%RBP),%EDI | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| LEA 0x1(%RAX),%ECX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| CMP %ECX,%EDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2ea8 <_Z7softmaxPKfPfS1_i+0x238> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV -0x78(%RBP),%RSI | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV -0x50(%RBP),%R15 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| INC %R13 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV %EDI,%EAX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| SUB %R13D,%EAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV -0x70(%RBP),%R14 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| ADD -0x68(%RBP),%R12 | 1 | 0.25 | 0.25 | 0.50 | 0.50 | 0 | 0.25 | 0.25 | 0 | 1 | 0.50 | scal (12.5%) |
| MOV %ECX,-0x38(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| ADD %RSI,-0x48(%RBP) | 2 | 0.25 | 0.25 | 0.83 | 0.83 | 1 | 0.25 | 0.25 | 0.33 | 5 | 1 | scal (12.5%) |
| MOV %R15,%RDI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| LEA 0x4(,%RAX,4),%RDX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| XOR %ESI,%ESI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| CALL 1050 <memset@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| MOV -0x38(%RBP),%ECX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV -0x60(%RBP),%RAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| ADD %R14,%R15 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| VMOVSS -0x34(%RBP),%XMM2 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| ADD %R14,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| VBROADCASTSS 0x118c(%RIP),%YMM0 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 5 | 0.50 | scal (6.3%) |
| MOV %R15,-0x50(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %ECX,-0x3c(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VMOVSS %XMM2,-0x8(%RAX,%R13,4) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| CMPL $0x6,-0x3c(%RBP) | 1 | 0.25 | 0.25 | 0.50 | 0.50 | 0 | 0.25 | 0.25 | 0 | 1 | 0.50 | N/A |
| JG 2d00 <_Z7softmaxPKfPfS1_i+0x90> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
