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These pages show the results of performance tests for different dynamo codes on the 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 Ver.1.1
Status: Three cases should be tested again
Calypso latest Ver.
Status: Two cases are missing and three cases should be tested again
GeoFEM-MHD
Status: Done
ETH code (not finished)
Status: Having a problem to generate initial field. Asking to authors.
SPmodel(GFD-dennou code) (not finished)
Status: Strong scaling is done. Discussing with authors
Goddard code
Status: Needs a routine to generate initial field of multiple resolutions. Request is pending.
H2000
Status: Done
Parody(IPGP JHU code)
Status: Done
LSD (Leeds code)
Status: Sending the report to authors
MagIC
Status: Done
SFEMANS (not finished)
Status: Strong scaling is done. Discussing with authors for warnings and changing resolutions
simitev-busse-drs
Status: Strong scaling is done with $l_{max} = 128$. Simulations fail more than $l_{max} = 192$.
UCSC-Glatzmaier code
Status: Strong scaling is done.
UCSC-Glatzmaier code (New Version)
Status: Code received.
xshells
Status: Done, need to communicate with authors.
