| Loop Id: 31 | Module: attention-gcc-gnr-256 | Source: attention_v2.cpp:43-61 | Coverage: 0.10% |
|---|
| Loop Id: 31 | Module: attention-gcc-gnr-256 | Source: attention_v2.cpp:43-61 | Coverage: 0.10% |
|---|
(30) 0x402ab8 MOV %R13D,%EDX |
(30) 0x402abb SHR $0x3,%EDX |
(30) 0x402abe SAL $0x5,%RDX |
(30) 0x402ac2 VBROADCASTSS 0x1739(%RIP),%YMM0 |
(30) 0x402acb MOV %R13D,%ECX |
(30) 0x402ace ADD %R12,%RDX |
(30) 0x402ad1 MOV %R12,%RAX |
(30) 0x402ad4 NOPW %CS:(%RAX,%RAX,1) |
(30) 0x402adf NOP |
(29) 0x402ae0 VMAXPS (%RAX),%YMM0,%YMM0 |
(29) 0x402ae4 ADD $0x20,%RAX |
(29) 0x402ae8 CMP %RAX,%RDX |
(29) 0x402aeb JNE 402ae0 |
(30) 0x402aed VEXTRACTF32X4 $0x1,%YMM0,%XMM3 |
(30) 0x402af4 VMAXPS %XMM0,%XMM3,%XMM1 |
(30) 0x402af8 VMOVHLPS %XMM1,%XMM1,%XMM2 |
(30) 0x402afc VMAXPS %XMM1,%XMM2,%XMM2 |
(30) 0x402b00 VSHUFPS $0x55,%XMM2,%XMM2,%XMM1 |
(30) 0x402b05 VMAXPS %XMM2,%XMM1,%XMM1 |
(30) 0x402b09 TEST $0x7,%CL |
(30) 0x402b0c JE 402c78 |
0x402b12 MOV %ECX,%EAX |
0x402b14 AND $-0x8,%EAX |
0x402b17 VMAXPS %XMM3,%XMM0,%XMM0 |
0x402b1b MOV %EAX,%ECX |
0x402b1d VZEROUPPER |
0x402b20 MOV -0x3c(%RBP),%EDX |
0x402b23 SUB %EAX,%EDX |
0x402b25 CMP $0x2,%EDX |
0x402b28 JBE 402b54 |
0x402b2a MOV -0x80(%RBP),%RDI |
0x402b2e ADD -0x48(%RBP),%RAX |
0x402b32 VMAXPS (%RDI,%RAX,4),%XMM0,%XMM0 |
0x402b37 INC %EDX |
0x402b39 VMOVHLPS %XMM0,%XMM0,%XMM1 |
0x402b3d VMAXPS %XMM0,%XMM1,%XMM0 |
0x402b41 VSHUFPS $0x55,%XMM0,%XMM0,%XMM1 |
0x402b46 VMAXPS %XMM0,%XMM1,%XMM1 |
0x402b4a TEST $0x3,%DL |
0x402b4d JE 402b79 |
0x402b4f AND $-0x4,%EDX |
0x402b52 ADD %EDX,%ECX |
0x402b54 MOV -0x3c(%RBP),%ESI |
0x402b57 MOVSXD %ECX,%RAX |
0x402b5a VMAXSS (%R12,%RAX,4),%XMM1,%XMM1 |
0x402b60 CMP %ECX,%ESI |
0x402b62 JLE 402b79 |
0x402b64 ADD $0x2,%ECX |
0x402b67 VMAXSS 0x4(%R12,%RAX,4),%XMM1,%XMM1 |
0x402b6e CMP %ECX,%ESI |
0x402b70 JL 402b79 |
0x402b72 VMAXSS 0x8(%R12,%RAX,4),%XMM1,%XMM1 |
(30) 0x402b79 MOVL $0,-0x34(%RBP) |
(30) 0x402b80 MOV %R12,%R14 |
(30) 0x402b83 VMOVSS %XMM1,-0x38(%RBP) |
(30) 0x402b88 NOPL (%RAX,%RAX,1) |
(27) 0x402b90 VMOVSS (%R14),%XMM0 |
(27) 0x402b95 ADD $0x4,%R14 |
(27) 0x402b99 VSUBSS -0x38(%RBP),%XMM0,%XMM0 |
(27) 0x402b9e CALL 401110 <expf@plt> |
(27) 0x402ba3 VADDSS -0x34(%RBP),%XMM0,%XMM5 |
(27) 0x402ba8 VMOVSS %XMM5,-0x34(%RBP) |
(27) 0x402bad CMP %R14,%RBX |
(27) 0x402bb0 JNE 402b90 |
(30) 0x402bb2 MOV -0x58(%RBP),%RAX |
(30) 0x402bb6 MOV -0x48(%RBP),%RSI |
(30) 0x402bba MOV %R12,%R15 |
(30) 0x402bbd LEA (%RAX,%RSI,4),%R14 |
(30) 0x402bc1 NOPL (%RAX) |
(28) 0x402bc8 VMOVSS (%R15),%XMM0 |
(28) 0x402bcd ADD $0x4,%R15 |
(28) 0x402bd1 VSUBSS -0x38(%RBP),%XMM0,%XMM0 |
(28) 0x402bd6 ADD $0x4,%R14 |
(28) 0x402bda CALL 401110 <expf@plt> |
(28) 0x402bdf VDIVSS -0x34(%RBP),%XMM0,%XMM0 |
(28) 0x402be4 VMOVSS %XMM0,-0x4(%R14) |
(28) 0x402bea CMP %R15,%RBX |
(28) 0x402bed JNE 402bc8 |
(30) 0x402bef MOV -0x3c(%RBP),%EAX |
(30) 0x402bf2 MOV -0x40(%RBP),%EDI |
(30) 0x402bf5 LEA 0x1(%RAX),%ECX |
(30) 0x402bf8 CMP %ECX,%EDI |
(30) 0x402bfa JE 402c80 |
(30) 0x402c00 MOV -0x78(%RBP),%RSI |
(30) 0x402c04 MOV -0x50(%RBP),%R15 |
(30) 0x402c08 INC %R13 |
(30) 0x402c0b MOV %EDI,%EAX |
(30) 0x402c0d SUB %R13D,%EAX |
(30) 0x402c10 ADD %RSI,-0x48(%RBP) |
(30) 0x402c14 MOV %R15,%RDI |
(30) 0x402c17 XOR %ESI,%ESI |
(30) 0x402c19 LEA 0x4(,%RAX,4),%RDX |
(30) 0x402c21 MOV -0x70(%RBP),%R14 |
(30) 0x402c25 MOV %ECX,-0x38(%RBP) |
(30) 0x402c28 ADD -0x68(%RBP),%R12 |
(30) 0x402c2c CALL 401040 <memset@plt> |
(30) 0x402c31 MOV -0x38(%RBP),%ECX |
(30) 0x402c34 MOV -0x60(%RBP),%RAX |
(30) 0x402c38 MOV %ECX,-0x3c(%RBP) |
(30) 0x402c3b VMOVSS -0x34(%RBP),%XMM2 |
(30) 0x402c40 ADD %R14,%R15 |
(30) 0x402c43 ADD %R14,%RBX |
(30) 0x402c46 CMPL $0x6,-0x3c(%RBP) |
(30) 0x402c4a MOV %R15,-0x50(%RBP) |
(30) 0x402c4e VMOVSS %XMM2,-0x8(%RAX,%R13,4) |
(30) 0x402c55 JG 402ab8 |
(30) 0x402c78 VZEROUPPER |
(30) 0x402c7b JMP 402b79 |
/home/eoseret/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-gnr-256 |
| 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 | 1.44 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 10.11 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.18 |
| Bottlenecks | micro-operation queue, |
| Function | softmax(float const*, float*, float*, int) |
| Source | attention_v2.cpp:47-48 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 6.00 |
| CQA cycles if no scalar integer | 4.17 |
| CQA cycles if FP arith vectorized | 6.00 |
| CQA cycles if fully vectorized | 0.59 |
| Front-end cycles | 6.00 |
| P0 cycles | 5.00 |
| P1 cycles | 5.00 |
| P2 cycles | 2.67 |
| P3 cycles | 2.67 |
| P4 cycles | 0.00 |
| P5 cycles | 4.90 |
| P6 cycles | 5.10 |
| P7 cycles | 0.00 |
| P8 cycles | 0.00 |
| P9 cycles | 0.00 |
| P10 cycles | 5.00 |
| P11 cycles | 2.67 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | NA |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 31.00 |
| Nb uops | 32.00 |
| Nb loads | 8.00 |
| Nb stores | 0.00 |
| Nb stack references | 3.00 |
| 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 | 8.67 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 52.00 |
| Bytes stored | 0.00 |
| Stride 0 | NA |
| Stride 1 | NA |
| Stride n | NA |
| Stride unknown | NA |
| Stride indirect | NA |
| Vectorization ratio all | 43.75 |
| Vectorization ratio load | 20.00 |
| 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 | 53.85 |
| Vector-efficiency ratio all | 13.67 |
| Vector-efficiency ratio load | 10.00 |
| 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 | 15.38 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.44 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 10.11 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.18 |
| Bottlenecks | micro-operation queue, |
| Function | softmax(float const*, float*, float*, int) |
| Source | attention_v2.cpp:47-48 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 6.00 |
| CQA cycles if no scalar integer | 4.17 |
| CQA cycles if FP arith vectorized | 6.00 |
| CQA cycles if fully vectorized | 0.59 |
| Front-end cycles | 6.00 |
| P0 cycles | 5.00 |
| P1 cycles | 5.00 |
| P2 cycles | 2.67 |
| P3 cycles | 2.67 |
| P4 cycles | 0.00 |
| P5 cycles | 4.90 |
| P6 cycles | 5.10 |
| P7 cycles | 0.00 |
| P8 cycles | 0.00 |
| P9 cycles | 0.00 |
| P10 cycles | 5.00 |
| P11 cycles | 2.67 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | NA |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 31.00 |
| Nb uops | 32.00 |
| Nb loads | 8.00 |
| Nb stores | 0.00 |
| Nb stack references | 3.00 |
| 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 | 8.67 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 52.00 |
| Bytes stored | 0.00 |
| Stride 0 | NA |
| Stride 1 | NA |
| Stride n | NA |
| Stride unknown | NA |
| Stride indirect | NA |
| Vectorization ratio all | 43.75 |
| Vectorization ratio load | 20.00 |
| 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 | 53.85 |
| Vector-efficiency ratio all | 13.67 |
| Vector-efficiency ratio load | 10.00 |
| 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 | 15.38 |
| Path / |
| Function | softmax(float const*, float*, float*, int) |
| Source file and lines | attention_v2.cpp:43-61 |
| Module | attention-gcc-gnr-256 |
| nb instructions | 31 |
| nb uops | 32 |
| loop length | 103 |
| used x86 registers | 7 |
| used mmx registers | 0 |
| used xmm registers | 3 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 3 |
| micro-operation queue | 6.00 cycles |
| front end | 6.00 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| uops | 5.00 | 5.00 | 2.67 | 2.67 | 0.00 | 4.90 | 5.10 | 0.00 | 0.00 | 0.00 | 5.00 | 2.67 |
| cycles | 5.00 | 5.00 | 2.67 | 2.67 | 0.00 | 4.90 | 5.10 | 0.00 | 0.00 | 0.00 | 5.00 | 2.67 |
| Cycles executing div or sqrt instructions | NA |
| Front-end | 6.00 |
| Dispatch | 5.10 |
| Overall L1 | 6.00 |
| all | 14% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 25% |
| all | 66% |
| load | 25% |
| store | NA (no store vectorizable/vectorized instructions) |
| 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 | 66% |
| all | 43% |
| load | 20% |
| 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 | 53% |
| all | 8% |
| load | 6% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 6% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 10% |
| all | 17% |
| load | 10% |
| store | NA (no store vectorizable/vectorized instructions) |
| 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 | 17% |
| all | 13% |
| load | 10% |
| 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 | 15% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOV %ECX,%EAX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.17 | N/A |
| AND $-0x8,%EAX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1-2 | 0.20 | N/A |
| VMAXPS %XMM3,%XMM0,%XMM0 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| MOV %EAX,%ECX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.17 | N/A |
| VZEROUPPER | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | vect (25.0%) |
| MOV -0x3c(%RBP),%EDX | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 1 | 0.33 | scal (6.3%) |
| SUB %EAX,%EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| CMP $0x2,%EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| JBE 402b54 <_Z7softmaxPKfPfS1_i+0x124> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| MOV -0x80(%RBP),%RDI | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 1 | 0.33 | N/A |
| ADD -0x48(%RBP),%RAX | 1 | 0.20 | 0.20 | 0.33 | 0.33 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.33 | 1 | 0.33 | N/A |
| VMAXPS (%RDI,%RAX,4),%XMM0,%XMM0 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | vect (25.0%) |
| INC %EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| VMOVHLPS %XMM0,%XMM0,%XMM1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | vect (12.5%) |
| VMAXPS %XMM0,%XMM1,%XMM0 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| VSHUFPS $0x55,%XMM0,%XMM0,%XMM1 | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.50 | vect (25.0%) |
| VMAXPS %XMM0,%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| TEST $0x3,%DL | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 2 | 0.20 | N/A |
| JE 402b79 <_Z7softmaxPKfPfS1_i+0x149> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| AND $-0x4,%EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1-2 | 0.20 | scal (6.3%) |
| ADD %EDX,%ECX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | N/A |
| MOV -0x3c(%RBP),%ESI | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 1 | 0.33 | N/A |
| MOVSXD %ECX,%RAX | 1 | 0 | 0.33 | 0 | 0 | 0 | 0.33 | 0 | 0 | 0 | 0 | 0.33 | 0 | 1 | 0.33 | N/A |
| VMAXSS (%R12,%RAX,4),%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | scal (6.3%) |
| CMP %ECX,%ESI | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| JLE 402b79 <_Z7softmaxPKfPfS1_i+0x149> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| ADD $0x2,%ECX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | N/A |
| VMAXSS 0x4(%R12,%RAX,4),%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | scal (6.3%) |
| CMP %ECX,%ESI | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | N/A |
| JL 402b79 <_Z7softmaxPKfPfS1_i+0x149> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| VMAXSS 0x8(%R12,%RAX,4),%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | scal (6.3%) |
| Function | softmax(float const*, float*, float*, int) |
| Source file and lines | attention_v2.cpp:43-61 |
| Module | attention-gcc-gnr-256 |
| nb instructions | 31 |
| nb uops | 32 |
| loop length | 103 |
| used x86 registers | 7 |
| used mmx registers | 0 |
| used xmm registers | 3 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 3 |
| micro-operation queue | 6.00 cycles |
| front end | 6.00 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| uops | 5.00 | 5.00 | 2.67 | 2.67 | 0.00 | 4.90 | 5.10 | 0.00 | 0.00 | 0.00 | 5.00 | 2.67 |
| cycles | 5.00 | 5.00 | 2.67 | 2.67 | 0.00 | 4.90 | 5.10 | 0.00 | 0.00 | 0.00 | 5.00 | 2.67 |
| Cycles executing div or sqrt instructions | NA |
| Front-end | 6.00 |
| Dispatch | 5.10 |
| Overall L1 | 6.00 |
| all | 14% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 25% |
| all | 66% |
| load | 25% |
| store | NA (no store vectorizable/vectorized instructions) |
| 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 | 66% |
| all | 43% |
| load | 20% |
| 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 | 53% |
| all | 8% |
| load | 6% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 6% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 10% |
| all | 17% |
| load | 10% |
| store | NA (no store vectorizable/vectorized instructions) |
| 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 | 17% |
| all | 13% |
| load | 10% |
| 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 | 15% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOV %ECX,%EAX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.17 | N/A |
| AND $-0x8,%EAX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1-2 | 0.20 | N/A |
| VMAXPS %XMM3,%XMM0,%XMM0 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| MOV %EAX,%ECX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.17 | N/A |
| VZEROUPPER | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | vect (25.0%) |
| MOV -0x3c(%RBP),%EDX | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 1 | 0.33 | scal (6.3%) |
| SUB %EAX,%EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| CMP $0x2,%EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| JBE 402b54 <_Z7softmaxPKfPfS1_i+0x124> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| MOV -0x80(%RBP),%RDI | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 1 | 0.33 | N/A |
| ADD -0x48(%RBP),%RAX | 1 | 0.20 | 0.20 | 0.33 | 0.33 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.33 | 1 | 0.33 | N/A |
| VMAXPS (%RDI,%RAX,4),%XMM0,%XMM0 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | vect (25.0%) |
| INC %EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| VMOVHLPS %XMM0,%XMM0,%XMM1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | vect (12.5%) |
| VMAXPS %XMM0,%XMM1,%XMM0 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| VSHUFPS $0x55,%XMM0,%XMM0,%XMM1 | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.50 | vect (25.0%) |
| VMAXPS %XMM0,%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | vect (25.0%) |
| TEST $0x3,%DL | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 2 | 0.20 | N/A |
| JE 402b79 <_Z7softmaxPKfPfS1_i+0x149> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| AND $-0x4,%EDX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1-2 | 0.20 | scal (6.3%) |
| ADD %EDX,%ECX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | N/A |
| MOV -0x3c(%RBP),%ESI | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 1 | 0.33 | N/A |
| MOVSXD %ECX,%RAX | 1 | 0 | 0.33 | 0 | 0 | 0 | 0.33 | 0 | 0 | 0 | 0 | 0.33 | 0 | 1 | 0.33 | N/A |
| VMAXSS (%R12,%RAX,4),%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | scal (6.3%) |
| CMP %ECX,%ESI | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | scal (6.3%) |
| JLE 402b79 <_Z7softmaxPKfPfS1_i+0x149> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| ADD $0x2,%ECX | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | N/A |
| VMAXSS 0x4(%R12,%RAX,4),%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | scal (6.3%) |
| CMP %ECX,%ESI | 1 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0.20 | 0 | 0 | 0 | 0.20 | 0 | 1 | 0.20 | N/A |
| JL 402b79 <_Z7softmaxPKfPfS1_i+0x149> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | N/A |
| VMAXSS 0x8(%R12,%RAX,4),%XMM1,%XMM1 | 1 | 0.50 | 0.50 | 0.33 | 0.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.33 | 4 | 0.50 | scal (6.3%) |
