There is a BMI pingpong test in $PVFS2_SRC/test/io/bmi/. Can you
build and run it between two machines to make sure that bmi_mx can
connect and pass data?
I compiled and ran the pingpong test, and it seems to work ok:
renton$ sudo ./test/io/bmi/pingpong -h mx://renton:0:3 -s
Starting expected test
begbie$ sudo /tmp/pingpong -h mx://renton:0:3 -c
Bytes usecs MB/s StdDev
Min Max
1 13.121 0.079 +- 0.013
0.016 0.110
2 13.138 0.159 +- 0.027
0.006 0.224
4 12.230 0.336 +- 0.044
0.019 0.447
8 12.848 0.641 +- 0.092
0.023 0.895
16 12.160 1.342 +- 0.167
0.127 1.790
32 13.367 2.477 +- 0.390
0.133 3.579
64 12.836 5.082 +- 0.575
0.357 6.711
128 13.753 9.529 +- 1.163 0.546
12.202
256 19.303 13.571 +- 1.765 1.268
18.355
512 25.314 20.553 +- 2.263 2.353
31.123
1024 33.631 30.846 +- 3.005 4.170
56.887
2048 56.869 36.631 +- 3.136 0.474
90.899
4096 63.095 65.351 +- 3.840 15.401
126.323
8192 90.809 107.935 +- 35.798 19.861
145.284
16384 135.989 136.231 +- 49.138 0.815
282.216
32768 164.927 203.865 +- 33.878 68.771
402.457
65536 235.281 284.368 +- 29.277 6.566
385.523
131072 349.701 382.089 +- 52.652 228.589
572.364
262144 587.697 458.013 +- 74.054 238.532
708.677
524288 1138.496 471.440 +- 71.701 276.816
710.853
1048576 2223.087 478.532 +- 57.036 332.141
625.834
2097152 4312.721 491.770 +- 51.694 349.641
638.207
4194304 8763.014 487.486 +- 58.947 174.562
625.544
renton$ sudo ./test/io/bmi/pingpong -h mx://renton:0:3 -s
Starting unexpected test
begbie$ sudo /tmp/pingpong -h mx://renton:0:3 -c -u
Bytes usecs MB/s StdDev
Min Max
1 15.690 0.065 +- 0.007
0.006 0.087
2 16.647 0.123 +- 0.016
0.013 0.166
4 15.940 0.255 +- 0.030
0.036 0.336
8 16.309 0.501 +- 0.063
0.055 0.671
16 16.366 0.995 +- 0.119
0.114 1.342
32 15.675 2.078 +- 0.251
0.339 2.796
64 17.150 3.862 +- 0.444
0.051 5.162
128 17.240 7.571 +- 0.916 0.807
10.226
256 20.921 12.455 +- 1.450 1.528
17.180
512 25.420 20.263 +- 1.234 4.079
26.189
1024 33.449 30.914 +- 2.706 7.816
41.699
2048 56.748 36.531 +- 2.806 1.480
63.866
4096 63.077 65.247 +- 3.462 24.595
101.058
8192 108.815 93.179 +- 38.932 6.014
144.978
I did initially have some problems compiling pingpong, as attempting
to make it resulted in an undefined reference error for sqrt. I ended
up just copying the gcc line from the make attempt and adding "-lm" to
the end, which compiled it just fine. I see the test/io/bmi/
module.mk.in file does set a variable that should be adding "-lm" to
MODLDFLAGS_$(DIR)/pingpong.o, but for some reason that either isn't
getting set or interpreted for me. In any case, it's not a big deal,
perhaps I was just calling make the wrong way (what I did was "make
test/io/bmi/pingpong" from the top-level of the build tree, since I
couldn't find any pseudo target for the test modules, and "make all"
didn't build it).
Josh.
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