Computational Infrastructure for Geodynamics Wiki

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These pages show the results of performance tests for different dynamo codes on the [[https://www.tacc.utexas.edu/user-services/user-guides/stampede-user-guide|TACC XSEDE Stampede system]].

To clarify terminology, here are some definitions of terms used in the measurements:
  * Node: On Stampede, each node contains //2 Xeon E5-2680// processors, each with 8 cores, for a total of 16 cores per node.  Each node also has //32GB 8x4G 4 channels DDR3-1600MHz// of memory, 
  * Core: A single core in a processor.
  * MPI processes: 
  * Thread: An OpenMP thread. Unless otherwise specified processor thread affinity is not enabled.
  * SU: Service unit, a unit of usage accounting equal to //#cores x #hours//. Usage is billed by the node, so using 8 of 16 cores in a node for 1 hour will be recorded as 16 SUs rather than 8 SUs.

All timings are measured in terms of wall time unless otherwise specified. They are measured using ''MPI_Wtime()'' (If program does not use MPI, ''system_clock(itime, irate, imax)'' is used). The time for one step is determined by taking the mean of the elapsed time for 100 time steps.

Calypso \\
 * [[wg:geodynamo:Performance_results:Calypso|Calypso Ver.1.1]] \\
Status: Done \\

 * [[wg:geodynamo:Performance_results:Calypso_Latest|Calypso latest Ver.]] \\
Status: Two cases are missing \\


[[wg:geodynamo:Performance_results:GeoFEM|GeoFEM-MHD]] \\
Status: Done \\

[[wg:geodynamo:Performance_results:ETH|ETH code]] \\
Status: Having a problem generating initial field. Request is pending to authors. \\

[[wg:geodynamo:Performance_results:Dennou|SPmodel(GFD-dennou code by Takehiro et al.)]] \\
Status: Strong scaling is done. Discussing with authors \\

[[wg:geodynamo:Performance_results:Goddard|Goddard code]] \\
Status: Routine has been written to generate initial field of multiple resolutions. 
Tests are underway. 
Request pending for how to deal with $dt$ adjustment. \\
Test again with different resolutions from better scaling.

[[wg:geodynamo:Performance_results:H2000|H2000]] \\
Status: Done \\

[[wg:geodynamo:Performance_results:IPGP|Parody(IPGP JHU code)]] \\
Status: Done \\

[[wg:geodynamo:Performance_results:LSD|LSD (Leeds code)]] \\
Status: Done \\

MagIC (by J. Wicht) \\
 * [[wg:geodynamo:Performance_results:MagIC|MagIC3]] \\
Status: Done \\

 * [[wg:geodynamo:Performance_results:MagIC5|MagIC5]] \\
Status: Now testing. 

[[wg:geodynamo:Performance_results:SFEMANS|SFEMANS (not finished)]] \\
Status: Strong scaling is done. Discussing with authors for warnings and changing resolutions \\

[[wg:geodynamo:Performance_results:Busse|simitev-busse-drs]] \\
Status: Received new version. Now testing.

UCSC-Glatzmaier \\
 * [[wg:geodynamo:Performance_results:Gary|UCSC-Glatzmaier code]] \\
Status: Strong scaling is done.

 * [[wg:geodynamo:Performance_results:Gary_Latest|UCSC-Glatzmaier code R3-p4]] \\
Status: Compiled.

[[wg:geodynamo:Performance_results:xshells|xshells]] \\
Status: Done. \\

[[wg:geodynamo:Performance_results:Rayleigh|Rayleigh]] \\
Status: Done. \\

[[wg:geodynamo:Performance_results:TITECH|TITECH code]] \\
Status: Report was sent to authors. \\

[[wg:geodynamo:Performance_results:Comp|Comparison among codes]] \\
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