G-RSM benchmark test
1. MPI Wall Clock Time comparison on IBM-SP Datastar (SDSC)
GSM (T62L28 72-hr), 192*94=18048 grid cells
|
64CPUs
|
128CPUs
|
256CPUs
|
psplit
|
22.0sec
|
19.0sec
|
23.4sec
|
GSM (T248L28 72-hr)
|
64CPUs
|
128CPUs
|
256CPUs
|
psplit
|
177.8 sec
|
|
|
RSM (128x199 10km 12-hour) 128*199=25472 grid cells
|
128CPUs
|
256CPUs
|
psplit
|
93.1sec
|
72.8sec
|
RSM (512x335 10km 6-hour) 512*335=171520 grid cells
|
512CPUs
|
1024CPUs
|
psplit
|
181.9sec
|
338.5sec
|
Ratio of the number of computational operations between RSM and GSM:
25472/18048x1800/30=1.411x60=85
Ratio of computation time from above table:
91.4 *6 / 19 = 29
This means RSM is 3 times more efficient???
2. MPI Wall Clock Time comparison on COMPAS Linux cluster (SIO)
RSM (128x199 10km 12-hour) 128*199=25472 grid cells
|
12-hr
|
24-hr
|
36-hr
|
48-hr
|
psplit_54
|
473.8
|
475.1
|
458.6
|
468.5
|
(roughly 2 times slower than IBM-SP)
3. MPI Wall Clock Time comparison on IBM-SP Bluesky (NCAR)
RSM (160x199 10km)
pspl_128: 216 sec/12-hour
Compare to 116.25sec on Datastar (SDSC).
See more comparison:
4. GSM MPI Wall Clock Time Comparison on COMPAS Linux cluster (SIO) - older processors.
5. RSM on IBM Power 4 graphs.
6. RSM on IBM machines at NCAR.