Performance of a Code Migration for the Simulation of Supersonic Ejector Flow to SMP, MIC, and GPU Using OpenMP, OpenMP+LEO, and OpenACC Directives

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left">MIC </td><td align="center"> Computing time </td><td align="center">Versus CPU serial vectorized without HT </td><td align="center"> Versus CPU (HT) OpenMP vectorized </td><td align="center">  GPU C2070 </td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left"> 5110P </td><td align="center"> 16 h 10 m 10 s (1.0X) </td><td align="center"> 2.15X </td><td align="center"><svg height="7.35473pt" id="M120" style="vertical-align:-0.3499303pt" version="1.1" viewbox="-0.0498162 -7.0048 7.75925 7.35473" width="7.75925pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M535 230V280H52V230H535Z" id="g117-33"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="587" vert-adv-y="587"></glyph.data></g></svg>3.5X </td><td align="center">−4.5X </td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Comparison of the speed-up factors taking as reference the MIC.

Scientific Programming

tab5

Table 5

Table 5: Performance of a Code Migration for the Simulation of Supersonic Ejector Flow to SMP, MIC, and GPU Using OpenMP, OpenMP+LEO, and OpenACC Directives 

Table 5 | Performance of a Code Migration for the Simulation of Supersonic Ejector Flow to SMP, MIC, and GPU Using OpenMP, OpenMP+LEO, and OpenACC Directives 