[knem-devel] Test failures

ryuuta ryuuta at gmail.com
Thu Feb 3 14:02:37 CET 2011


Hi,

I have just checked out knem from git repository, successfully built, and
installed it.
Then I ran tests to get 2 failures:

********************************************
Checking loopback performance with all flags
DMA support not available, ignoring it
     1024: 3.516 us 291.27 MB/s 277.78 MiB/s
     2048: 9.484 us 215.93 MB/s 205.93 MiB/s
     4096: 17.395 us 235.48 MB/s 224.57 MiB/s
     8192: 20.215 us 405.25 MB/s 386.47 MiB/s
*** glibc detected *** ../knem_loopback: free(): invalid pointer: 0x08568010
***
======= Backtrace: =========
/lib/libc.so.6(+0x6b661)[0x400a8661]
/lib/libc.so.6(+0x6cf7b)[0x400a9f7b]
/lib/libc.so.6(cfree+0x6d)[0x400ad11d]
../knem_loopback[0x80490e9]
/lib/libc.so.6(__libc_start_main+0xe6)[0x40053db6]
../knem_loopback[0x8048641]
======= Memory map: ========
08048000-0804a000 r-xp 00000000 08:14 2242611
 /home/ryuta/devel/knem/src/build/tools/knem_loopback
0804a000-0804b000 rw-p 00001000 08:14 2242611
 /home/ryuta/devel/knem/src/build/tools/knem_loopback
08566000-08587000 rw-p 00000000 00:00 0          [heap]
40000000-4001c000 r-xp 00000000 08:13 748        /lib/ld-2.13.so
4001c000-4001d000 r--p 0001b000 08:13 748        /lib/ld-2.13.so
4001d000-4001e000 rw-p 0001c000 08:13 748        /lib/ld-2.13.so
4001e000-4001f000 r-xp 00000000 00:00 0          [vdso]
4001f000-40020000 rw-p 00000000 00:00 0
40020000-40021000 rw-s 00000000 00:05 137123     /dev/knem
40021000-40022000 rw-p 00000000 00:00 0
4003d000-40182000 r-xp 00000000 08:13 725        /lib/libc-2.13.so
40182000-40183000 ---p 00145000 08:13 725        /lib/libc-2.13.so
40183000-40185000 r--p 00145000 08:13 725        /lib/libc-2.13.so
40185000-40186000 rw-p 00147000 08:13 725        /lib/libc-2.13.so
40186000-4018a000 rw-p 00000000 00:00 0
401a7000-401c2000 r-xp 00000000 08:13 62492      /usr/lib/libgcc_s.so.1
401c2000-401c3000 rw-p 0001a000 08:13 62492      /usr/lib/libgcc_s.so.1
40200000-40221000 rw-p 00000000 00:00 0
40221000-40300000 ---p 00000000 00:00 0
bfc8c000-bfcad000 rw-p 00000000 00:00 0          [stack]
./loopback2: line 45: 27363 Aborted                 ../knem_loopback -F 63
FAIL: loopback2
*****************************

Checking master-initiated scatter performance
aggregate throughput moving buffer chunks from master (rank 0) to slaves
(ranks 1-1)
processing data transfers in master process
     1024 to/among 1 procs: 4.562 us 224.44 MB/s 214.04 MiB/s
     2048 to/among 1 procs: 4.574 us 447.73 MB/s 426.99 MiB/s
     4096 to/among 1 procs: 11.918 us 343.68 MB/s 327.76 MiB/s
     8192 to/among 1 procs: 5.531 us 1481.04 MB/s 1412.43 MiB/s
    16384 to/among 1 procs: 17.977 us 911.41 MB/s 869.19 MiB/s
./collectives3: line 45: 27418 Killed                  ../knem_collectives
-D -m -s
FAIL: collectives3

My kernel is 2.6.37.

Thanks,

Ryuta
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