Parallelization of ARWPost

メモ

Auto parallel のテスト

• 1. まとめると, Auto parallel にしたら, 約1.7倍の速度向上が見込めます.

  2. 特に, CC は configure で設定された"gcc"のままコンパイルしたほうがちょっと速いようです.

☆ Single 版 ☆

• • FC = ifort

  • FFLAG = -O3 -xSSE2

  • CC = gcc

    • Time: 5m52s

☆ Auto Parallel 版 (その1) ☆

• • FC = ifort

  • FFLAG = -O3 -xSSE2 -parallel -par-report1

  • CC = gcc

    • Thread = 1

    • Time: 4m19s

    • Thread = 2

    • Time: 4m10s

    • Thread = 3

    • Time: 4m12s

    • Thread = 4

    • Time: 4m08s

    • Thread = 5

    • Time: 4m21s

    • Thread = 6

    • Time: 4m06s

☆ Auto Parallel 版 (その2) ☆

• • FC = ifort

  • FFLAG = -O3 -xSSE2 -parallel -par-report1

  • CC = icc

  • CFLAG = -O3 -xSSE2 -parallel -par-report1

    • Thread = 1

    • Time: 4m28s

  • Thread = 2

  • Time: 4m10s

  • Thread = 3

  • Time: 4m25s

  • Thread = 4

  • Time: 4m11s

  • Thread = 5

  • Time: 4m23s

    • Thread = 6

    • Time: 4m09s

OpenMP化 のテスト

・500x500x55x2 の4次元データでテスト。

OpenMP 版(Intel Compiler)

• • FC = ifort

  • FFLAG = -O3 -xSSE4.2 -openmp -openmp-report1 -parallel -par-report1

  • CC = icc

    • Thread = 1

    • Time: 4m00s

    • Thread = 8

    • Time: 3m43s

    • Thread = 16

    • Time: 3m12s

OpenMP 版(PGI compiler)

• • FC = pgf90

  • FFLAG = -O3 -fast -tp sandybridge-64 -mp -Minfo

  • CC = gcc

    • Thread = 1

    • Time: 5m00s

    • Thread = 2

    • Time: 5m55s

    • Thread = 4

    • Time: 6m13s

    • Thread = 8

    • Time: ms

    • Thread = 12

    • Time: ms

    • Thread = 16

    • Time: ms

    • Thread = 24

    • Time: ms

GPGPU化 のテスト

☆ GPGPU 版(PGI accelerator compiler) ☆

• • FC = pgf90

  • FFLAG = -O3 -fast -tp sandybridge-64 -mp -Minfo

  • CC = gcc

    • Thread = 1

    • Time: 4m00s

    • Thread = 2

    • Time: 4m10s

    • Thread = 4

    • Time: 4m12s

    • Thread = 8

    • Time: 4m08s

    • Thread = 12

    • Time: 4m21s

    • Thread = 16

    • Time: 4m21s

    • Thread = 24

    • Time: 4m06s