| Loop Id: 3978 | Module: exec | Source: csr_matvec.c:259-261 | Coverage: 6.73% |
|---|
| Loop Id: 3978 | Module: exec | Source: csr_matvec.c:259-261 | Coverage: 6.73% |
|---|
0x4d4750 VMOVUPD (%RSI,%RBX,8),%YMM1 [1] |
0x4d4755 KXNORW %K0,%K0,%K1 |
0x4d4759 VXORPD %XMM2,%XMM2,%XMM2 |
0x4d475d VGATHERQPD (%R9,%YMM1,8),%YMM2{%K1} [3] |
0x4d4764 VFMADD231PD (%RDI,%RBX,8),%YMM2,%YMM0 [2] |
0x4d476a ADD $0x4,%RBX |
0x4d476e CMP %RCX,%RBX |
0x4d4771 JBE 4d4750 |
/home/kcamus/qaas_runs/169-443-9681/intel/AMG/build/AMG/AMG/seq_mv/csr_matvec.c: 259 - 261 |
-------------------------------------------------------------------------------- |
259: for (jj = A_i[i]; jj < A_i[i+1]; jj++) |
260: { |
261: tempx += A_data[jj] * x_data[A_j[jj]]; |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | __kmp_invoke_microtask | libiomp5.so | |
| ○ | __kmp_fork_call | libiomp5.so | |
| ○ | __kmpc_fork_call | libiomp5.so | |
| ○ | hypre_CSRMatrixMatvecOutOfPlac[...] | csr_matvec.c:243 | exec |
| ○ | hypre_ParCSRMatrixMatvecOutOfP[...] | par_csr_matvec.c:216 | exec |
| ○ | hypre_PCGSolve | pcg.c:496 | exec |
| ○ | main | amg.c:419 | exec |
| ○ | __libc_init_first | libc.so.6 |
| Path / |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 1.33 |
| CQA speedup if fully vectorized | 2.67 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.33 |
| Bottlenecks | |
| Function | hypre_CSRMatrixMatvecOutOfPlace.extracted |
| Source | csr_matvec.c:259-261 |
| 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 | 3.00 |
| CQA cycles if fully vectorized | 1.50 |
| Front-end cycles | 2.75 |
| DIV/SQRT cycles | 2.00 |
| P0 cycles | 1.50 |
| P1 cycles | 3.00 |
| P2 cycles | 3.00 |
| P3 cycles | 0.00 |
| P4 cycles | 1.25 |
| P5 cycles | 1.25 |
| P6 cycles | 0.00 |
| P7 cycles | 0.00 |
| Inter-iter dependencies cycles | 4 |
| FE+BE cycles (UFS) | 40.24 |
| Stall cycles (UFS) | 37.46 |
| Nb insns | 8.00 |
| Nb uops | 10.00 |
| Nb loads | 3.00 |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 2.00 |
| Nb FLOP add-sub | 0.00 |
| Nb FLOP mul | 0.00 |
| Nb FLOP fma | 4.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 24.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 96.00 |
| Bytes stored | 0.00 |
| Stride 0 | 0.00 |
| Stride 1 | 2.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 1.00 |
| Vectorization ratio all | 100.00 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | NA |
| Vectorization ratio fma | 100.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 100.00 |
| Vector-efficiency ratio all | 43.75 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | NA |
| Vector-efficiency ratio fma | 50.00 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 37.50 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.00 |
| CQA speedup if FP arith vectorized | 1.33 |
| CQA speedup if fully vectorized | 2.67 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.33 |
| Bottlenecks | |
| Function | hypre_CSRMatrixMatvecOutOfPlace.extracted |
| Source | csr_matvec.c:259-261 |
| 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 | 3.00 |
| CQA cycles if fully vectorized | 1.50 |
| Front-end cycles | 2.75 |
| DIV/SQRT cycles | 2.00 |
| P0 cycles | 1.50 |
| P1 cycles | 3.00 |
| P2 cycles | 3.00 |
| P3 cycles | 0.00 |
| P4 cycles | 1.25 |
| P5 cycles | 1.25 |
| P6 cycles | 0.00 |
| P7 cycles | 0.00 |
| Inter-iter dependencies cycles | 4 |
| FE+BE cycles (UFS) | 40.24 |
| Stall cycles (UFS) | 37.46 |
| Nb insns | 8.00 |
| Nb uops | 10.00 |
| Nb loads | 3.00 |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 2.00 |
| Nb FLOP add-sub | 0.00 |
| Nb FLOP mul | 0.00 |
| Nb FLOP fma | 4.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 24.00 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 96.00 |
| Bytes stored | 0.00 |
| Stride 0 | 0.00 |
| Stride 1 | 2.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 1.00 |
| Vectorization ratio all | 100.00 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | NA |
| Vectorization ratio mul | NA |
| Vectorization ratio add_sub | NA |
| Vectorization ratio fma | 100.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 100.00 |
| Vector-efficiency ratio all | 43.75 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | NA |
| Vector-efficiency ratio add_sub | NA |
| Vector-efficiency ratio fma | 50.00 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 37.50 |
| Path / |
| Function | hypre_CSRMatrixMatvecOutOfPlace.extracted |
| Source file and lines | csr_matvec.c:259-261 |
| Module | exec |
| nb instructions | 8 |
| nb uops | 10 |
| loop length | 35 |
| used x86 registers | 5 |
| used mmx registers | 0 |
| used xmm registers | 1 |
| used ymm registers | 3 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 2.75 cycles |
| front end | 2.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 2.00 | 1.50 | 3.00 | 3.00 | 0.00 | 1.25 | 1.25 | 0.00 |
| cycles | 2.00 | 1.50 | 3.00 | 3.00 | 0.00 | 1.25 | 1.25 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 4.00 |
| FE+BE cycles | 40.24 |
| Stall cycles | 37.46 |
| LB full (events) | 38.70 |
| Front-end | 2.75 |
| Dispatch | 3.00 |
| 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 | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 100% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 100% |
| all | 43% |
| load | 50% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 50% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 37% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VMOVUPD (%RSI,%RBX,8),%YMM1 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 5-6 | 0.50 |
| KXNORW %K0,%K0,%K1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| VXORPD %XMM2,%XMM2,%XMM2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 |
| VGATHERQPD (%R9,%YMM1,8),%YMM2{%K1} | 4 | 1 | 0 | 2 | 2 | 0 | 1 | 0 | 0 | 20 | 4 |
| VFMADD231PD (%RDI,%RBX,8),%YMM2,%YMM0 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 |
| ADD $0x4,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| CMP %RCX,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| JBE 4d4750 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 |
| Function | hypre_CSRMatrixMatvecOutOfPlace.extracted |
| Source file and lines | csr_matvec.c:259-261 |
| Module | exec |
| nb instructions | 8 |
| nb uops | 10 |
| loop length | 35 |
| used x86 registers | 5 |
| used mmx registers | 0 |
| used xmm registers | 1 |
| used ymm registers | 3 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 2.75 cycles |
| front end | 2.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 2.00 | 1.50 | 3.00 | 3.00 | 0.00 | 1.25 | 1.25 | 0.00 |
| cycles | 2.00 | 1.50 | 3.00 | 3.00 | 0.00 | 1.25 | 1.25 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 4.00 |
| FE+BE cycles | 40.24 |
| Stall cycles | 37.46 |
| LB full (events) | 38.70 |
| Front-end | 2.75 |
| Dispatch | 3.00 |
| 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 | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 100% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 100% |
| all | 43% |
| load | 50% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | 50% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 37% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VMOVUPD (%RSI,%RBX,8),%YMM1 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 5-6 | 0.50 |
| KXNORW %K0,%K0,%K1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| VXORPD %XMM2,%XMM2,%XMM2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 |
| VGATHERQPD (%R9,%YMM1,8),%YMM2{%K1} | 4 | 1 | 0 | 2 | 2 | 0 | 1 | 0 | 0 | 20 | 4 |
| VFMADD231PD (%RDI,%RBX,8),%YMM2,%YMM0 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 |
| ADD $0x4,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| CMP %RCX,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
| JBE 4d4750 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 |
| Metric | run_0 |
|---|---|
| Coverage (% app. time) | 6.73 |
| Time (s) | 2.46 |
| Instance Count | 68561267 |
| Iteration Count - min | 2 |
| Iteration Count - avg | 5.99 |
| Iteration Count - max | 6 |
| Cycles per Iteration - min | 0 |
| Cycles per Iteration - avg | 0.83 |
| Cycles per Iteration - max | 122208 |
