| Loop Id: 65 | Module: attention-avx512 | Source: attention.cpp:30-31 | Coverage: 10.27% |
|---|
| Loop Id: 65 | Module: attention-avx512 | Source: attention.cpp:30-31 | Coverage: 10.27% |
|---|
0x4d10 LEA -0x1(%RBX),%R15D |
0x4d14 VMOVSS (%R14,%R15,4),%XMM1 [1] |
0x4d1a VCVTSS2SD %XMM1,%XMM1,%XMM1 |
0x4d1e MOV %R11D,%R15D |
0x4d21 MOV 0xe8(%RSP),%RDX [2] |
0x4d29 VMOVSS (%RDX,%R15,4),%XMM2 [4] |
0x4d2f VCVTSS2SD %XMM2,%XMM2,%XMM2 |
0x4d33 VFMADD213SD %XMM0,%XMM1,%XMM2 |
0x4d38 MOV %EBX,%R15D |
0x4d3b VMOVSS (%R14,%R15,4),%XMM0 [1] |
0x4d41 VCVTSS2SD %XMM0,%XMM0,%XMM1 |
0x4d45 LEA (%R13,%R11,1),%R15D |
0x4d4a MOV 0xe8(%RSP),%RDX [2] |
0x4d52 VMOVSS (%RDX,%R15,4),%XMM0 [3] |
0x4d58 MOV 0xe8(%RSP),%R15 [2] |
0x4d60 VCVTSS2SD %XMM0,%XMM0,%XMM0 |
0x4d64 VFMADD213SD %XMM2,%XMM1,%XMM0 |
0x4d69 ADD $0x2,%R10 |
0x4d6d ADD $0x2,%EBX |
0x4d70 ADD %RCX,%R11 |
0x4d73 CMP %R10,%RAX |
0x4d76 JNE 4d10 |
/home/eoseret/Applications/llm-attention/attention.cpp: 30 - 31 |
-------------------------------------------------------------------------------- |
30: for (unsigned int k = 0; k < K; ++k) { //vectorized |
31: sum += (double)A[i * K + k] * (double)B[k * N + j]; |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | attention-avx512 |
| 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 | 2.00 |
| CQA speedup if fully vectorized | 14.67 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.28 |
| Bottlenecks | |
| Function | main |
| Source | attention.cpp:30-31 |
| Source loop unroll info | multi-versionned |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 8.00 |
| CQA cycles if no scalar integer | 8.00 |
| CQA cycles if FP arith vectorized | 4.00 |
| CQA cycles if fully vectorized | 0.55 |
| Front-end cycles | 6.25 |
| P0 cycles | 4.00 |
| P1 cycles | 4.00 |
| P2 cycles | 3.50 |
| P3 cycles | 3.50 |
| P4 cycles | 0.00 |
| P5 cycles | 4.00 |
| P6 cycles | 4.00 |
| P7 cycles | 0.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 8 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 22.00 |
| Nb uops | 25.00 |
| Nb loads | 7.00 |
| Nb stores | 0.00 |
| Nb stack references | 1.00 |
| FLOP/cycle | 0.50 |
| Nb FLOP add-sub | 0.00 |
| Nb FLOP mul | 0.00 |
| Nb FLOP fma | 2.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 5.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 40.00 |
| Bytes stored | 0.00 |
| Stride 0 | 1.00 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 3.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 0.00 |
| Vectorization ratio load | 0.00 |
| Vectorization ratio store | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | NA |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 7.50 |
| Vector-efficiency ratio load | 6.25 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | NA |
| Vector-efficiency ratio fma | 12.50 |
| 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 | 2.00 |
| CQA speedup if fully vectorized | 14.67 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.28 |
| Bottlenecks | |
| Function | main |
| Source | attention.cpp:30-31 |
| Source loop unroll info | multi-versionned |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 8.00 |
| CQA cycles if no scalar integer | 8.00 |
| CQA cycles if FP arith vectorized | 4.00 |
| CQA cycles if fully vectorized | 0.55 |
| Front-end cycles | 6.25 |
| P0 cycles | 4.00 |
| P1 cycles | 4.00 |
| P2 cycles | 3.50 |
| P3 cycles | 3.50 |
| P4 cycles | 0.00 |
| P5 cycles | 4.00 |
| P6 cycles | 4.00 |
| P7 cycles | 0.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 8 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 22.00 |
| Nb uops | 25.00 |
| Nb loads | 7.00 |
| Nb stores | 0.00 |
| Nb stack references | 1.00 |
| FLOP/cycle | 0.50 |
| Nb FLOP add-sub | 0.00 |
| Nb FLOP mul | 0.00 |
| Nb FLOP fma | 2.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 5.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 40.00 |
| Bytes stored | 0.00 |
| Stride 0 | 1.00 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 3.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 0.00 |
| Vectorization ratio load | 0.00 |
| Vectorization ratio store | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | NA |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 7.50 |
| Vector-efficiency ratio load | 6.25 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | NA |
| Vector-efficiency ratio fma | 12.50 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 6.25 |
| Path / |
| Function | main |
| Source file and lines | attention.cpp:30-31 |
| Module | attention-avx512 |
| nb instructions | 22 |
| nb uops | 25 |
| loop length | 104 |
| used x86 registers | 10 |
| used mmx registers | 0 |
| used xmm registers | 3 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 1 |
| micro-operation queue | 6.25 cycles |
| front end | 6.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 4.00 | 4.00 | 3.50 | 3.50 | 0.00 | 4.00 | 4.00 | 0.00 |
| cycles | 4.00 | 4.00 | 3.50 | 3.50 | 0.00 | 4.00 | 4.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 8.00 |
| Front-end | 6.25 |
| Dispatch | 4.00 |
| Data deps. | 8.00 |
| Overall L1 | 8.00 |
| all | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 7% |
| load | 6% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 12% |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LEA -0x1(%RBX),%R15D | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| VMOVSS (%R14,%R15,4),%XMM1 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| VCVTSS2SD %XMM1,%XMM1,%XMM1 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| MOV %R11D,%R15D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV 0xe8(%RSP),%RDX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VMOVSS (%RDX,%R15,4),%XMM2 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| VCVTSS2SD %XMM2,%XMM2,%XMM2 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| VFMADD213SD %XMM0,%XMM1,%XMM2 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| MOV %EBX,%R15D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| VMOVSS (%R14,%R15,4),%XMM0 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| VCVTSS2SD %XMM0,%XMM0,%XMM1 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| LEA (%R13,%R11,1),%R15D | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| MOV 0xe8(%RSP),%RDX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VMOVSS (%RDX,%R15,4),%XMM0 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| MOV 0xe8(%RSP),%R15 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VCVTSS2SD %XMM0,%XMM0,%XMM0 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| VFMADD213SD %XMM2,%XMM1,%XMM0 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| ADD $0x2,%R10 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD $0x2,%EBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD %RCX,%R11 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| CMP %R10,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JNE 4d10 <main+0x1560> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| Function | main |
| Source file and lines | attention.cpp:30-31 |
| Module | attention-avx512 |
| nb instructions | 22 |
| nb uops | 25 |
| loop length | 104 |
| used x86 registers | 10 |
| used mmx registers | 0 |
| used xmm registers | 3 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 1 |
| micro-operation queue | 6.25 cycles |
| front end | 6.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 4.00 | 4.00 | 3.50 | 3.50 | 0.00 | 4.00 | 4.00 | 0.00 |
| cycles | 4.00 | 4.00 | 3.50 | 3.50 | 0.00 | 4.00 | 4.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 8.00 |
| Front-end | 6.25 |
| Dispatch | 4.00 |
| Data deps. | 8.00 |
| Overall L1 | 8.00 |
| all | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 7% |
| load | 6% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 12% |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LEA -0x1(%RBX),%R15D | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| VMOVSS (%R14,%R15,4),%XMM1 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| VCVTSS2SD %XMM1,%XMM1,%XMM1 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| MOV %R11D,%R15D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV 0xe8(%RSP),%RDX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VMOVSS (%RDX,%R15,4),%XMM2 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| VCVTSS2SD %XMM2,%XMM2,%XMM2 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| VFMADD213SD %XMM0,%XMM1,%XMM2 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| MOV %EBX,%R15D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| VMOVSS (%R14,%R15,4),%XMM0 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| VCVTSS2SD %XMM0,%XMM0,%XMM1 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| LEA (%R13,%R11,1),%R15D | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| MOV 0xe8(%RSP),%RDX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VMOVSS (%RDX,%R15,4),%XMM0 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| MOV 0xe8(%RSP),%R15 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VCVTSS2SD %XMM0,%XMM0,%XMM0 | 2 | 0.50 | 0.50 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 1 | scal (6.3%) |
| VFMADD213SD %XMM2,%XMM1,%XMM0 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| ADD $0x2,%R10 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD $0x2,%EBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD %RCX,%R11 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| CMP %R10,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JNE 4d10 <main+0x1560> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
