PPPL-3869 is available in <a href="PPPL-3869.pdf">pdf</a> format (636 KB).

<p>
<b>Porting the 3D Gyrokinetic Particle-in-cell Code GTC to the CRAY/NEC SX-6 Vector Architecture: Perspectives and Challenges</b>
</p>

<p>
<b>Authors:</b> S. Ethier and Z. Lin

</p>

<p>
<b>Date of PPPL Report:</b> September 2003
</p>

<p>
<b>Presented at:</b> the 18th International Conference on Numerical Simulation of Plasmas (ICNSP '03), 7-10 September 2003, Cape Code, Massachusetts.
</p>




<p>

Several years of optimization on the super-scalar architecture has made it more difficult to port the current version of the 3D particle-in-cell code GTC to the CRAY/NEC SX-6 vector architecture. This paper explains the initial work that has been done to port this code to the SX-6 computer and to optimize the most time consuming parts. Early performance results are shown and compared to the same test done on the IBM SP Power 3 and Power 4 machines.




</p>