I ahve a cluster with the following configuration:
0-12 Redhat 9 on AMD Athlon 1.2 Ghz
13-15 Intel Xeon 2.8 Ghz
16 Pentium II 330 Mhz
I can run the following
mpirun -v n13-15 -s n16 synbench 8192 10 512
mpirun -v -np 13 -s n16 synbench 8192 10 512
but have problem running this
mpirun -v -np 16 -s n16 synbench 8192 10 512
synbench is a simple simulation of a nearest neighbour program.
details:
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mpirun -v n13-15 -s n16 synbench 8192 10 512
15510 synbench running on n13
20786 synbench running on n14
32429 synbench running on n15
ProbSize: 8192,chunksize 4096, Processes: 2, iter: 10, compfactor: 512
id: 1, previous: 0, next: 2
id: 2, previous: 1, next: 0
8192 4096 2 10 512 0.076542
mpirun -v -np 13 -s n16 synbench 8192 10 512
28552 synbench running on n0
820 synbench running on n1
26971 synbench running on n2
32061 synbench running on n3
18919 synbench running on n4
25656 synbench running on n5
9540 synbench running on n6
25775 synbench running on n7
19614 synbench running on n8
18981 synbench running on n9
19431 synbench running on n10
19494 synbench running on n11
28731 synbench running on n12
ProbSize: 8192,chunksize 682, Processes: 12, iter: 10, compfactor: 512
id: 4, previous: 3, next: 5
id: 1, previous: 0, next: 2
id: 8, previous: 7, next: 9
id: 2, previous: 1, next: 3
id: 3, previous: 2, next: 4
id: 6, previous: 5, next: 7
id: 10, previous: 9, next: 11
id: 7, previous: 6, next: 8
id: 9, previous: 8, next: 10
id: 5, previous: 4, next: 6
id: 11, previous: 10, next: 12
id: 12, previous: 11, next: 0
8192 682 12 10 512 1.747621
mpirun -v -np 16 -s n16 synbench 8192 10 512
28553 synbench running on n0
821 synbench running on n1
26972 synbench running on n2
32062 synbench running on n3
18920 synbench running on n4
25657 synbench running on n5
9541 synbench running on n6
25776 synbench running on n7
19615 synbench running on n8
18982 synbench running on n9
19432 synbench running on n10
19495 synbench running on n11
28734 synbench running on n12
15532 synbench running on n13
20805 synbench running on n14
32448 synbench running on n15
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