| Loop Id: 2699 | Module: exec | Source: ams.c:608-609 | Coverage: 0.15% |
|---|
| Loop Id: 2699 | Module: exec | Source: ams.c:608-609 | Coverage: 0.15% |
|---|
0x499270 VANDPD (%RBX,%RAX,8),%YMM1,%YMM3 [1] |
0x499275 VADDPD %YMM3,%YMM2,%YMM2 |
0x499279 ADD $0x4,%RAX |
0x49927d CMP %RDI,%RAX |
0x499280 JBE 499270 |
/home/kcamus/qaas_runs/169-443-9681/intel/AMG/build/AMG/AMG/parcsr_ls/ams.c: 608 - 609 |
-------------------------------------------------------------------------------- |
608: for (j = A_diag_I[i]; j < A_diag_I[i+1]; j++) |
609: l1_norm[i] += fabs(A_diag_data[j]); |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | hypre_BoomerAMGSetup | par_amg_setup.c:1381 | exec |
| ○ | hypre_PCGSetup | pcg.c:234 | exec |
| ○ | main | amg.c:398 | exec |
| ○ | __libc_init_first | libc.so.6 |
| Path / |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 2.00 |
| CQA speedup if fully vectorized | 2.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 3.20 |
| Bottlenecks | |
| Function | hypre_ParCSRComputeL1Norms |
| Source | ams.c:608-609 |
| Source loop unroll info | unrolled by 4 |
| Source loop unroll confidence level | max |
| Unroll/vectorization loop type | main |
| Unroll factor | 4 |
| CQA cycles | 4.00 |
| CQA cycles if no scalar integer | 4.00 |
| CQA cycles if FP arith vectorized | 2.00 |
| CQA cycles if fully vectorized | 2.00 |
| Front-end cycles | 1.25 |
| DIV/SQRT cycles | 1.00 |
| P0 cycles | 1.08 |
| P1 cycles | 0.50 |
| P2 cycles | 0.50 |
| P3 cycles | 0.00 |
| P4 cycles | 0.92 |
| P5 cycles | 1.00 |
| P6 cycles | 0.00 |
| P7 cycles | 0.00 |
| Inter-iter dependencies cycles | 4 |
| FE+BE cycles (UFS) | 4.11 |
| Stall cycles (UFS) | 2.37 |
| Nb insns | 5.00 |
| Nb uops | 4.00 |
| Nb loads | 1.00 |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 1.00 |
| Nb FLOP add-sub | 4.00 |
| 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 | 8.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 32.00 |
| Bytes stored | 0.00 |
| 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 | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | 100.00 |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 100.00 |
| Vector-efficiency ratio all | 50.00 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | 50.00 |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 50.00 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 2.00 |
| CQA speedup if fully vectorized | 2.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 3.20 |
| Bottlenecks | |
| Function | hypre_ParCSRComputeL1Norms |
| Source | ams.c:608-609 |
| Source loop unroll info | unrolled by 4 |
| Source loop unroll confidence level | max |
| Unroll/vectorization loop type | main |
| Unroll factor | 4 |
| CQA cycles | 4.00 |
| CQA cycles if no scalar integer | 4.00 |
| CQA cycles if FP arith vectorized | 2.00 |
| CQA cycles if fully vectorized | 2.00 |
| Front-end cycles | 1.25 |
| DIV/SQRT cycles | 1.00 |
| P0 cycles | 1.08 |
| P1 cycles | 0.50 |
| P2 cycles | 0.50 |
| P3 cycles | 0.00 |
| P4 cycles | 0.92 |
| P5 cycles | 1.00 |
| P6 cycles | 0.00 |
| P7 cycles | 0.00 |
| Inter-iter dependencies cycles | 4 |
| FE+BE cycles (UFS) | 4.11 |
| Stall cycles (UFS) | 2.37 |
| Nb insns | 5.00 |
| Nb uops | 4.00 |
| Nb loads | 1.00 |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 1.00 |
| Nb FLOP add-sub | 4.00 |
| 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 | 8.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 32.00 |
| Bytes stored | 0.00 |
| 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 | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | 100.00 |
| Vectorization ratio fma | NA |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 100.00 |
| Vector-efficiency ratio all | 50.00 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | 50.00 |
| Vector-efficiency ratio fma | NA |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 50.00 |
| Path / |
| Function | hypre_ParCSRComputeL1Norms |
| Source file and lines | ams.c:608-609 |
| Module | exec |
| nb instructions | 5 |
| nb uops | 4 |
| loop length | 18 |
| used x86 registers | 3 |
| used mmx registers | 0 |
| used xmm registers | 0 |
| used ymm registers | 3 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 1.25 cycles |
| front end | 1.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.08 | 0.50 | 0.50 | 0.00 | 0.92 | 1.00 | 0.00 |
| cycles | 1.00 | 1.08 | 0.50 | 0.50 | 0.00 | 0.92 | 1.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 4.00 |
| FE+BE cycles | 4.11 |
| Stall cycles | 2.37 |
| RS full (events) | 0.10 |
| PRF full (events) | 2.54 |
| Front-end | 1.25 |
| Dispatch | 1.08 |
| Data deps. | 4.00 |
| Overall L1 | 4.00 |
| all | 100% |
| load | 100% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 100% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 100% |
| all | 50% |
| load | 50% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 50% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 50% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANDPD (%RBX,%RAX,8),%YMM1,%YMM3 | 1 | 0.33 | 0.33 | 0.50 | 0.50 | 0 | 0.33 | 0 | 0 | 1 | 0.50 |
| VADDPD %YMM3,%YMM2,%YMM2 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 |
| ADD $0x4,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| CMP %RDI,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| JBE 499270 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 |
| Function | hypre_ParCSRComputeL1Norms |
| Source file and lines | ams.c:608-609 |
| Module | exec |
| nb instructions | 5 |
| nb uops | 4 |
| loop length | 18 |
| used x86 registers | 3 |
| used mmx registers | 0 |
| used xmm registers | 0 |
| used ymm registers | 3 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 1.25 cycles |
| front end | 1.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.08 | 0.50 | 0.50 | 0.00 | 0.92 | 1.00 | 0.00 |
| cycles | 1.00 | 1.08 | 0.50 | 0.50 | 0.00 | 0.92 | 1.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 4.00 |
| FE+BE cycles | 4.11 |
| Stall cycles | 2.37 |
| RS full (events) | 0.10 |
| PRF full (events) | 2.54 |
| Front-end | 1.25 |
| Dispatch | 1.08 |
| Data deps. | 4.00 |
| Overall L1 | 4.00 |
| all | 100% |
| load | 100% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 100% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 100% |
| all | 50% |
| load | 50% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 50% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 50% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANDPD (%RBX,%RAX,8),%YMM1,%YMM3 | 1 | 0.33 | 0.33 | 0.50 | 0.50 | 0 | 0.33 | 0 | 0 | 1 | 0.50 |
| VADDPD %YMM3,%YMM2,%YMM2 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 |
| ADD $0x4,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| CMP %RDI,%RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| JBE 499270 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 |
