| Loop Id: 4 | Module: kmeans-gcc-Ofast | Source: main.cpp:61-67 | Coverage: 93.01% |
|---|
| Loop Id: 4 | Module: kmeans-gcc-Ofast | Source: main.cpp:61-67 | Coverage: 93.01% |
|---|
0x401be0 LDP D31, D30, [X0], #16 [2] |
0x401be4 FSUB D30, D27, S30 |
0x401be8 FSUB D31, D28, S31 |
0x401bec FMUL D30, D30, D30 |
0x401bf0 FMADD D31, D31, D31, D30 |
0x401bf4 FCMPE D29, D31 |
0x401bf8 B.LS 401c04 |
0x401bfc FMOV D29, D31 |
0x401c00 STR W1, [X5, X3,LSL #2] [1] |
0x401c04 ADD W1, W1, #1 |
0x401c08 CMP W2, W1 |
0x401c0c B.NE 401be0 |
/home/fmusial/KMEANS_Benchmarks/kmeans/main.cpp: 61 - 67 |
-------------------------------------------------------------------------------- |
61: for (int j = 0; j < k; ++j) { |
62: double dist = |
63: (points[i].x - centroids[j].x) * (points[i].x - centroids[j].x) + |
64: (points[i].y - centroids[j].y) * (points[i].y - centroids[j].y); |
65: if (dist < optimal_dist) { |
66: optimal_dist = dist; |
67: assignment[i] = j; |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►50.10+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| ►49.90+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►75.04+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so | |
| ►24.96+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►87.36+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so | |
| ►12.64+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►93.68+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so | |
| ►6.32+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►96.89+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so | |
| ►3.11+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►97.94+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so | |
| ►2.06+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►98.45+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | start_thread | libpthread-2.31.so | |
| ○ | __clone | libc-2.31.so | |
| ►1.55+ | GOMP_parallel | libgomp.h:980 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-Ofast |
| ○ | main | main.cpp:19 | kmeans-gcc-Ofast |
| ○ | __libc_start_main | libc-2.31.so | |
| ○ | _start | new_allocator.h:104 | kmeans-gcc-Ofast |
| 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 | 1.38 |
| CQA speedup if FP arith vectorized | 1.38 |
| CQA speedup if fully vectorized | 4.00 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.38 |
| Bottlenecks | |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source | main.cpp:61-67 |
| 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 | 1.38 |
| CQA cycles if no scalar integer | 1.00 |
| CQA cycles if FP arith vectorized | 1.00 |
| CQA cycles if fully vectorized | 0.34 |
| Front-end cycles | 1.38 |
| P0 cycles | 1.00 |
| P1 cycles | 1.00 |
| P2 cycles | 0.75 |
| P3 cycles | 0.75 |
| P4 cycles | 0.75 |
| P5 cycles | 0.75 |
| P6 cycles | 1.38 |
| P7 cycles | 1.38 |
| P8 cycles | 1.38 |
| P9 cycles | 1.38 |
| P10 cycles | 0.58 |
| P11 cycles | 0.42 |
| P12 cycles | 0.50 |
| P13 cycles | 0.25 |
| P14 cycles | 0.25 |
| 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 | 11.00 |
| Nb loads | NA |
| Nb stores | 0.50 |
| Nb stack references | 0.00 |
| FLOP/cycle | 3.64 |
| Nb FLOP add-sub | 2.00 |
| Nb FLOP mul | 1.00 |
| Nb FLOP fma | 1.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 13.07 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 16.00 |
| Bytes stored | 2.00 |
| Stride 0 | 1.50 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 14.58 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | 0.00 |
| Vectorization ratio mul | 0.00 |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 27.86 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | 12.50 |
| Vector-efficiency ratio mul | 25.00 |
| Vector-efficiency ratio add_sub | 25.00 |
| Vector-efficiency ratio fma | 25.00 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 25.00 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.50 |
| CQA speedup if FP arith vectorized | 1.50 |
| CQA speedup if fully vectorized | 4.36 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.50 |
| Bottlenecks | micro-operation queue, P6, P7, P8, P9, |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source | main.cpp:61-67 |
| 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 | 1.50 |
| CQA cycles if no scalar integer | 1.00 |
| CQA cycles if FP arith vectorized | 1.00 |
| CQA cycles if fully vectorized | 0.34 |
| Front-end cycles | 1.50 |
| P0 cycles | 1.00 |
| P1 cycles | 1.00 |
| P2 cycles | 0.75 |
| P3 cycles | 0.75 |
| P4 cycles | 0.75 |
| P5 cycles | 0.75 |
| P6 cycles | 1.50 |
| P7 cycles | 1.50 |
| P8 cycles | 1.50 |
| P9 cycles | 1.50 |
| P10 cycles | 0.83 |
| P11 cycles | 0.50 |
| P12 cycles | 0.67 |
| P13 cycles | 0.50 |
| P14 cycles | 0.50 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 1 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 12.00 |
| Nb uops | 12.00 |
| Nb loads | NA |
| Nb stores | 1.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 3.33 |
| Nb FLOP add-sub | 2.00 |
| Nb FLOP mul | 1.00 |
| Nb FLOP fma | 1.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 13.33 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 16.00 |
| Bytes stored | 4.00 |
| Stride 0 | 2.00 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 12.50 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | 0.00 |
| Vectorization ratio mul | 0.00 |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 26.56 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | 12.50 |
| Vector-efficiency ratio mul | 25.00 |
| Vector-efficiency ratio add_sub | 25.00 |
| Vector-efficiency ratio fma | 25.00 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 25.00 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.25 |
| CQA speedup if FP arith vectorized | 1.25 |
| CQA speedup if fully vectorized | 3.64 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.25 |
| Bottlenecks | micro-operation queue, P6, P7, P8, P9, |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source | main.cpp:61-67 |
| 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 | 1.25 |
| CQA cycles if no scalar integer | 1.00 |
| CQA cycles if FP arith vectorized | 1.00 |
| CQA cycles if fully vectorized | 0.34 |
| Front-end cycles | 1.25 |
| P0 cycles | 1.00 |
| P1 cycles | 1.00 |
| P2 cycles | 0.75 |
| P3 cycles | 0.75 |
| P4 cycles | 0.75 |
| P5 cycles | 0.75 |
| P6 cycles | 1.25 |
| P7 cycles | 1.25 |
| P8 cycles | 1.25 |
| P9 cycles | 1.25 |
| P10 cycles | 0.33 |
| P11 cycles | 0.33 |
| P12 cycles | 0.33 |
| P13 cycles | 0.00 |
| P14 cycles | 0.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | 1 |
| FE+BE cycles (UFS) | NA |
| Stall cycles (UFS) | NA |
| Nb insns | 10.00 |
| Nb uops | 10.00 |
| Nb loads | NA |
| Nb stores | 0.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 4.00 |
| Nb FLOP add-sub | 2.00 |
| Nb FLOP mul | 1.00 |
| Nb FLOP fma | 1.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 12.80 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 16.00 |
| Bytes stored | 0.00 |
| Stride 0 | 1.00 |
| Stride 1 | 0.00 |
| Stride n | 0.00 |
| Stride unknown | 0.00 |
| Stride indirect | 0.00 |
| Vectorization ratio all | 16.67 |
| Vectorization ratio load | 100.00 |
| Vectorization ratio store | NA |
| Vectorization ratio mul | 0.00 |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 0.00 |
| Vector-efficiency ratio all | 29.17 |
| Vector-efficiency ratio load | 50.00 |
| Vector-efficiency ratio store | NA |
| Vector-efficiency ratio mul | 25.00 |
| Vector-efficiency ratio add_sub | 25.00 |
| Vector-efficiency ratio fma | 25.00 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 25.00 |
| Path / |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source file and lines | main.cpp:61-67 |
| Module | kmeans-gcc-Ofast |
| nb instructions | 11 |
| nb uops | 11 |
| loop length | 44 |
| used w registers | 2 |
| used x registers | 2 |
| used b registers | 0 |
| used h registers | 0 |
| used s registers | 2 |
| used d registers | 5 |
| used q registers | 0 |
| used v registers | 0 |
| used z registers | 0 |
| nb stack references | 0 |
| ADD-SUB / MUL ratio | 2.00 |
| micro-operation queue | 1.38 cycles |
| front end | 1.38 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 | P14 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.00 | 0.75 | 0.75 | 0.75 | 0.75 | 1.38 | 1.38 | 1.38 | 1.38 | 0.58 | 0.42 | 0.50 | 0.25 | 0.25 |
| cycles | 1.00 | 1.00 | 0.75 | 0.75 | 0.75 | 0.75 | 1.38 | 1.38 | 1.38 | 1.38 | 0.58 | 0.42 | 0.50 | 0.25 | 0.25 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 1.38 |
| Dispatch | 1.38 |
| Data deps. | 1.00 |
| Overall L1 | 1.38 |
| all | 75% |
| load | 100% |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | NA (no other vectorizable/vectorized instructions) |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 14% |
| load | 100% |
| store | 0% |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 40% |
| load | 50% |
| store | 12% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | NA (no other vectorizable/vectorized instructions) |
| all | 25% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 25% |
| add-sub | 25% |
| fma | 25% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 25% |
| all | 27% |
| load | 50% |
| store | 12% |
| mul | 25% |
| add-sub | 25% |
| fma | 25% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 25% |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source file and lines | main.cpp:61-67 |
| Module | kmeans-gcc-Ofast |
| nb instructions | 12 |
| nb uops | 12 |
| loop length | 48 |
| used w registers | 2 |
| used x registers | 3 |
| used b registers | 0 |
| used h registers | 0 |
| used s registers | 2 |
| used d registers | 5 |
| used q registers | 0 |
| used v registers | 0 |
| used z registers | 0 |
| nb stack references | 0 |
| ADD-SUB / MUL ratio | 2.00 |
| micro-operation queue | 1.50 cycles |
| front end | 1.50 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 | P14 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.00 | 0.75 | 0.75 | 0.75 | 0.75 | 1.50 | 1.50 | 1.50 | 1.50 | 0.83 | 0.50 | 0.67 | 0.50 | 0.50 |
| cycles | 1.00 | 1.00 | 0.75 | 0.75 | 0.75 | 0.75 | 1.50 | 1.50 | 1.50 | 1.50 | 0.83 | 0.50 | 0.67 | 0.50 | 0.50 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 1.50 |
| Dispatch | 1.50 |
| Data deps. | 1.00 |
| Overall L1 | 1.50 |
| all | 50% |
| load | 100% |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | NA (no other vectorizable/vectorized instructions) |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 12% |
| load | 100% |
| store | 0% |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 31% |
| load | 50% |
| store | 12% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | NA (no add-sub vectorizable/vectorized instructions) |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | NA (no other vectorizable/vectorized instructions) |
| all | 25% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 25% |
| add-sub | 25% |
| fma | 25% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 25% |
| all | 26% |
| load | 50% |
| store | 12% |
| mul | 25% |
| add-sub | 25% |
| fma | 25% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 25% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 | P14 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LDP D31, D30, [X0], #16 | 1 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0.33 | 0.33 | 0.33 | 0 | 0 | 6 | 0.33 | vect (50.0%) |
| FSUB D30, D27, S30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 2 | 0.25 | scal (25.0%) |
| FSUB D31, D28, S31 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 2 | 0.25 | scal (25.0%) |
| FMUL D30, D30, D30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 3 | 0.25 | scal (25.0%) |
| FMADD D31, D31, D31, D30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 4 | 0.25 | scal (25.0%) |
| FCMPE D29, D31 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | scal (25.0%) |
| B.LS 401c04 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xa4> | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.50 | N/A |
| FMOV D29, D31 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 2 | 0.25 | scal (25.0%) |
| STR W1, [X5, X3,LSL #2] | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0.50 | 0 | 0.50 | 0.50 | 1 | 0.50 | scal (12.5%) |
| ADD W1, W1, #1 | 1 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.25 | N/A |
| CMP W2, W1 | 1 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.33 | N/A |
| B.NE 401be0 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x80> | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.50 | N/A |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source file and lines | main.cpp:61-67 |
| Module | kmeans-gcc-Ofast |
| nb instructions | 10 |
| nb uops | 10 |
| loop length | 40 |
| used w registers | 2 |
| used x registers | 1 |
| used b registers | 0 |
| used h registers | 0 |
| used s registers | 2 |
| used d registers | 5 |
| used q registers | 0 |
| used v registers | 0 |
| used z registers | 0 |
| nb stack references | 0 |
| ADD-SUB / MUL ratio | 2.00 |
| micro-operation queue | 1.25 cycles |
| front end | 1.25 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 | P14 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| uops | 1.00 | 1.00 | 0.75 | 0.75 | 0.75 | 0.75 | 1.25 | 1.25 | 1.25 | 1.25 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 |
| cycles | 1.00 | 1.00 | 0.75 | 0.75 | 0.75 | 0.75 | 1.25 | 1.25 | 1.25 | 1.25 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 |
| Cycles executing div or sqrt instructions | NA |
| Longest recurrence chain latency (RecMII) | 1.00 |
| Front-end | 1.25 |
| Dispatch | 1.25 |
| Data deps. | 1.00 |
| Overall L1 | 1.25 |
| 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 | NA (no fma vectorizable/vectorized instructions) |
| other | NA (no other vectorizable/vectorized instructions) |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 16% |
| load | 100% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 0% |
| all | 50% |
| 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 | NA (no fma vectorizable/vectorized instructions) |
| other | NA (no other vectorizable/vectorized instructions) |
| all | 25% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 25% |
| add-sub | 25% |
| fma | 25% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 25% |
| all | 29% |
| load | 50% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 25% |
| add-sub | 25% |
| fma | 25% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 25% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 | P14 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LDP D31, D30, [X0], #16 | 1 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0.33 | 0.33 | 0.33 | 0 | 0 | 6 | 0.33 | vect (50.0%) |
| FSUB D30, D27, S30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 2 | 0.25 | scal (25.0%) |
| FSUB D31, D28, S31 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 2 | 0.25 | scal (25.0%) |
| FMUL D30, D30, D30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 3 | 0.25 | scal (25.0%) |
| FMADD D31, D31, D31, D30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 4 | 0.25 | scal (25.0%) |
| FCMPE D29, D31 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | scal (25.0%) |
| B.LS 401c04 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xa4> | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.50 | N/A |
| ADD W1, W1, #1 | 1 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.25 | N/A |
| CMP W2, W1 | 1 | 0 | 0 | 0.25 | 0.25 | 0.25 | 0.25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.33 | N/A |
| B.NE 401be0 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x80> | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.50 | N/A |
| Run run_1_thread | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 1 |
|---|---|
| Run run_2_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 2 |
| Run run_4_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 4 |
| Run run_8_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 8 |
| Run run_16_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 16 |
| Run run_32_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 32 |
| Run run_48_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 48 |
| Run run_64_threads | Number processes: 1Number nodes: 1Number processes per node: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 64 |
| (run_1_thread) Efficiency | (run_1_thread) Potential Speed-Up (%) | (run_2_threads) Efficiency | (run_2_threads) Potential Speed-Up (%) | (run_4_threads) Efficiency | (run_4_threads) Potential Speed-Up (%) | (run_8_threads) Efficiency | (run_8_threads) Potential Speed-Up (%) | (run_16_threads) Efficiency | (run_16_threads) Potential Speed-Up (%) | (run_32_threads) Efficiency | (run_32_threads) Potential Speed-Up (%) | (run_48_threads) Efficiency | (run_48_threads) Potential Speed-Up (%) | (run_64_threads) Efficiency | (run_64_threads) Potential Speed-Up (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 0.93 | 6.38 | 0.82 | 16.54 | 0.69 | 29.14 | 0.52 | 44.98 | 0.34 | 61.25 | 0.25 | 69.67 | 0.2 | 74.86 |
| Run | Number of threads | Efficiency (ideal is 1) | Speedup | Ideal Speedup | Time (s) | Coverage (%) |
|---|---|---|---|---|---|---|
| run_1_thread | 1 | 1 | 1 | 1 | 150.4919128418 | 93.011123657227 |
| run_2_threads | 2 | 0.93 | 1.86 | 2 | 76.61799621582 | 92.926155090332 |
| run_4_threads | 4 | 0.82 | 3.29 | 4 | 39.860973358154 | 92.863700866699 |
| run_8_threads | 8 | 0.69 | 5.5 | 8 | 20.062995910645 | 93.089019775391 |
| run_16_threads | 16 | 0.52 | 8.27 | 16 | 10.256991386414 | 93.080467224121 |
| run_32_threads | 32 | 0.34 | 11 | 32 | 5.4099969863892 | 93.322395324707 |
| run_48_threads | 48 | 0.25 | 12.23 | 48 | 3.9099972248077 | 93.488327026367 |
| run_64_threads | 64 | 0.2 | 12.91 | 64 | 3.1659996509552 | 93.773750305176 |
