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test 27 cells vectorisation results

Last edited by James Willis

COSMA5 Intel Xeon CPU E5-2670

icc compiler version: 16.0.2 20160204

Test 27 Cell

C2 Wendland Kernel

Corner, Edge and Face Interaction Times & Speed Up

Raw Serial Times (-no-vec -no-simd -O3 -xAVX)

Interaction Type Original SWIFT h=1.2348 h=12.5 Sorted Cache h=1.2348 h=12.5 PG Max Distance h=1.2348 h=12.5
Corner 40216 49829914 180793 38303346 209294 37523420
Edge 181996 73839397 370244 57470649 403437 56278909
Face 1100019 37280204 1049727 28724599 959387 28138903

Raw Vectorised Times (-O3 -xAVX)

Interaction Type Sorted Cache h=1.2348 h=12.5 PG Max Distance h=1.2348 h=12.5
Corner 150151 8289022 186603 7345322
Edge 299649 12430004 347146 11003632
Face 553499 6209785 510492 5497553

Speed Up Over Original SWIFT

Interaction Type Sorted Cache h=1.2348 h=12.5 PG Max Distance h=1.2348 h=12.5
Corner 0.27x 6.01x 0.22x 6.78x
Edge 0.61x 5.94x 0.52x 6.71x
Face 1.99x 6.00x 2.15x 6.78x

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