| Loop Id: 42 | Module: attention-gcc-skl512 | Source: random.tcc:412-417 | Coverage: 0.14% |
|---|
| Loop Id: 42 | Module: attention-gcc-skl512 | Source: random.tcc:412-417 | Coverage: 0.14% |
|---|
0x37f8 VPANDQ 0x8(%RAX),%ZMM4,%ZMM1 [2] |
0x3802 VMOVDQA64 %ZMM5,%ZMM0 |
0x3808 ADD $0x40,%RAX |
0x380c VPTERNLOGQ $-0x14,-0x40(%RAX),%ZMM1,%ZMM0 [1] |
0x3814 VPSRLQ $0x1,%ZMM0,%ZMM1 |
0x381b VPANDQ %ZMM3,%ZMM0,%ZMM0 |
0x3821 VPMULLQ %ZMM2,%ZMM0,%ZMM0 |
0x3827 VPTERNLOGQ $-0x6a,-0x758(%RAX),%ZMM0,%ZMM1 [1] |
0x3832 VMOVDQU64 %ZMM1,-0x40(%RAX) [1] |
0x3839 CMP %RAX,%RDX |
0x383c JNE 37f8 |
/usr/include/c++/16.1.1/bits/random.tcc: 412 - 417 |
-------------------------------------------------------------------------------- |
412: for (size_t __k = (__n - __m); __k < (__n - 1); ++__k) |
413: { |
414: _UIntType __y = ((_M_x[__k] & __upper_mask) |
415: | (_M_x[__k + 1] & __lower_mask)); |
416: _M_x[__k] = (_M_x[__k + (__m - __n)] ^ (__y >> 1) |
417: ^ ((__y & 0x01) ? __a : 0)); |
| 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 | 1.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.14 |
| Bottlenecks | P0, P5, |
| Function | std::mersenne_twister_engine |
| Source | random.tcc:412-417 |
| Source loop unroll info | not unrolled or unrolled with no peel/tail loop |
| Source loop unroll confidence level | max |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 4.00 |
| CQA cycles if no scalar integer | 4.00 |
| CQA cycles if FP arith vectorized | 4.00 |
| CQA cycles if fully vectorized | 4.00 |
| Front-end cycles | 3.50 |
| P0 cycles | 4.00 |
| P1 cycles | 1.00 |
| P2 cycles | 1.50 |
| P3 cycles | 1.50 |
| P4 cycles | 1.00 |
| P5 cycles | 4.00 |
| P6 cycles | 1.00 |
| P7 cycles | 1.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 1 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 11.00 |
| Nb uops | 14.00 |
| Nb loads | 3.00 |
| Nb stores | 1.00 |
| 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 | 64.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 192.00 |
| Bytes stored | 64.00 |
| Stride 0 | 0.00 |
| Stride 1 | 1.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 100.00 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | 100.00 |
| Vectorization ratio mul | 100.00 |
| Vectorization ratio add_sub | NA |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 100.00 |
| Vector-efficiency ratio all | 100.00 |
| Vector-efficiency ratio load | 100.00 |
| Vector-efficiency ratio store | 100.00 |
| Vector-efficiency ratio mul | 100.00 |
| Vector-efficiency ratio add_sub | NA |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 100.00 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 1.00 |
| CQA speedup if fully vectorized | 1.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.14 |
| Bottlenecks | P0, P5, |
| Function | std::mersenne_twister_engine |
| Source | random.tcc:412-417 |
| Source loop unroll info | not unrolled or unrolled with no peel/tail loop |
| Source loop unroll confidence level | max |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 4.00 |
| CQA cycles if no scalar integer | 4.00 |
| CQA cycles if FP arith vectorized | 4.00 |
| CQA cycles if fully vectorized | 4.00 |
| Front-end cycles | 3.50 |
| P0 cycles | 4.00 |
| P1 cycles | 1.00 |
| P2 cycles | 1.50 |
| P3 cycles | 1.50 |
| P4 cycles | 1.00 |
| P5 cycles | 4.00 |
| P6 cycles | 1.00 |
| P7 cycles | 1.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 1 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 11.00 |
| Nb uops | 14.00 |
| Nb loads | 3.00 |
| Nb stores | 1.00 |
| 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 | 64.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 192.00 |
| Bytes stored | 64.00 |
| Stride 0 | 0.00 |
| Stride 1 | 1.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 100.00 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | 100.00 |
| Vectorization ratio mul | 100.00 |
| Vectorization ratio add_sub | NA |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 100.00 |
| Vector-efficiency ratio all | 100.00 |
| Vector-efficiency ratio load | 100.00 |
| Vector-efficiency ratio store | 100.00 |
| Vector-efficiency ratio mul | 100.00 |
| Vector-efficiency ratio add_sub | NA |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 100.00 |
| Path / |
| Function | std::mersenne_twister_engine |
| Source file and lines | random.tcc:412-417 |
| Module | attention-gcc-skl512 |
| nb instructions | 11 |
| nb uops | 14 |
| loop length | 70 |
| used x86 registers | 2 |
| used mmx registers | 0 |
| used xmm registers | 0 |
| used ymm registers | 0 |
| used zmm registers | 6 |
| nb stack references | 0 |
| micro-operation queue | 3.50 cycles |
| front end | 3.50 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 4.00 | 1.00 | 1.50 | 1.50 | 1.00 | 4.00 | 1.00 | 1.00 |
| cycles | 4.00 | 1.00 | 1.50 | 1.50 | 1.00 | 4.00 | 1.00 | 1.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 3.50 |
| Dispatch | 4.00 |
| Data deps. | 1.00 |
| Overall L1 | 4.00 |
| all | 100% |
| load | 100% |
| store | 100% |
| mul | 100% |
| 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 | 100% |
| all | 100% |
| load | 100% |
| store | 100% |
| mul | 100% |
| 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 | 100% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VPANDQ 0x8(%RAX),%ZMM4,%ZMM1 | 1 | 0.50 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VMOVDQA64 %ZMM5,%ZMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (100.0%) |
| ADD $0x40,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| VPTERNLOGQ $-0x14,-0x40(%RAX),%ZMM1,%ZMM0 | 2 | 0.50 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VPSRLQ $0x1,%ZMM0,%ZMM1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | vect (100.0%) |
| VPANDQ %ZMM3,%ZMM0,%ZMM0 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VPMULLQ %ZMM2,%ZMM0,%ZMM0 | 3 | 1.50 | 0 | 0 | 0 | 0 | 1.50 | 0 | 0 | 15 | 1.50 | vect (100.0%) |
| VPTERNLOGQ $-0x6a,-0x758(%RAX),%ZMM0,%ZMM1 | 2 | 0.50 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VMOVDQU64 %ZMM1,-0x40(%RAX) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 4 | 1 | vect (100.0%) |
| CMP %RAX,%RDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JNE 37f8 <_ZNSt23mersenne_twister_engineImLm32ELm624ELm397ELm31ELm2567483615ELm11ELm4294967295ELm7ELm2636928640ELm15ELm4022730752ELm18ELm1812433253EE11_M_gen_randEv+0x138> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| Function | std::mersenne_twister_engine |
| Source file and lines | random.tcc:412-417 |
| Module | attention-gcc-skl512 |
| nb instructions | 11 |
| nb uops | 14 |
| loop length | 70 |
| used x86 registers | 2 |
| used mmx registers | 0 |
| used xmm registers | 0 |
| used ymm registers | 0 |
| used zmm registers | 6 |
| nb stack references | 0 |
| micro-operation queue | 3.50 cycles |
| front end | 3.50 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 4.00 | 1.00 | 1.50 | 1.50 | 1.00 | 4.00 | 1.00 | 1.00 |
| cycles | 4.00 | 1.00 | 1.50 | 1.50 | 1.00 | 4.00 | 1.00 | 1.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 3.50 |
| Dispatch | 4.00 |
| Data deps. | 1.00 |
| Overall L1 | 4.00 |
| all | 100% |
| load | 100% |
| store | 100% |
| mul | 100% |
| 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 | 100% |
| all | 100% |
| load | 100% |
| store | 100% |
| mul | 100% |
| 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 | 100% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VPANDQ 0x8(%RAX),%ZMM4,%ZMM1 | 1 | 0.50 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VMOVDQA64 %ZMM5,%ZMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (100.0%) |
| ADD $0x40,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| VPTERNLOGQ $-0x14,-0x40(%RAX),%ZMM1,%ZMM0 | 2 | 0.50 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VPSRLQ $0x1,%ZMM0,%ZMM1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | vect (100.0%) |
| VPANDQ %ZMM3,%ZMM0,%ZMM0 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VPMULLQ %ZMM2,%ZMM0,%ZMM0 | 3 | 1.50 | 0 | 0 | 0 | 0 | 1.50 | 0 | 0 | 15 | 1.50 | vect (100.0%) |
| VPTERNLOGQ $-0x6a,-0x758(%RAX),%ZMM0,%ZMM1 | 2 | 0.50 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | vect (100.0%) |
| VMOVDQU64 %ZMM1,-0x40(%RAX) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 4 | 1 | vect (100.0%) |
| CMP %RAX,%RDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JNE 37f8 <_ZNSt23mersenne_twister_engineImLm32ELm624ELm397ELm31ELm2567483615ELm11ELm4294967295ELm7ELm2636928640ELm15ELm4022730752ELm18ELm1812433253EE11_M_gen_randEv+0x138> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |