I'm working on this bug. As far as I see the patch from the bug 365
do not help us here. However, on my 64 bits machines (not Opteron but
G5) I don't get the segfault. Anyway, I get the bad data transmission
for test #1 and #51. So far my main problem is that I cannot
reproduce these errors with any other data-type tests [and believe me
we have a bunch of them]. The only one who fails is the BLACS. I
wonder what the data-type looks like for the failing tests. Someone
here knows how to extract the BLACS data-type (for test #1 and #51) ?
Or how to force BLACS to print the data-type information for each
test (M, N and so on) ?
Thanks,
george.
On Oct 4, 2006, at 4:13 PM, Michael Kluskens wrote:
On Oct 4, 2006, at 8:22 AM, Harald Forbert wrote:
The TRANSCOMM setting that we are using here and that I think is the
correct one is "-DUseMpi2" since OpenMPI implements the corresponding
mpi2 calls. You need a recent version of BLACS for this setting
to be available (1.1 with patch 3 should be fine). Together with the
patch to openmpi1.1.1 from ticket 356 we are passing the blacs tester
for 4 processors. I didn't have to time to test with other numbers
though.
Unfortunately this did not solve the problems I'm seeing, could be
that my system is 64 bits (another person seeing problems on an
Opteron system).
New tests of BLACS 1.1p3 vs. OpenMPI (1.1.1, 1.1.2rc1, 1.3a1r11962)
with Intel ifort 9.0.32 and g95 (Sep 27 2006).
System: Debian Linux 3.1r3 on dual-opteron, gcc 3.3.5, all tests with
4 processors
1) patched OpenMPI 1.1.1 and 1.1.2rc1 using the two lines from Ticket
356.
2) set TRANSCOMM = -DUseMpi2
Intel ifort 9.0.32 tests (INTFACE=-DAdd):
OpenMPI 1.1.1 (patched) & OpenMPI 1.1.2rc1 (patched):
In the xCbtest both generated errors until Integer Sum tests then
no more errors)
OpenMPI 1.3a1r11962: no errors until crash:
COMPLEX AMX TESTS: BEGIN.
Signal:11 info.si_errno:0(Success) si_code:1(SEGV_MAPERR)
Failing at addr:0xe62000
[0] func:/opt/intel9.1/openmpi/1.3/lib/libopal.so.0
(opal_backtrace_print+0x1f) [0x2a95aa8c1f]
*** End of error message ***
Signal:11 info.si_errno:0(Success) si_code:1(SEGV_MAPERR)
Failing at addr:0xbc0000
[0] func:/opt/intel9.1/openmpi/1.3/lib/libopal.so.0
(opal_backtrace_print+0x1f) [0x2a95aa8c1f]
*** End of error message ***
g95 (Sep 27 2006) tests (INTFACE=-Df77IsF2C):
OpenMPI 1.1.1 (patched) & OpenMPI 1.1.2rc1 (patched):
In the xCbtest both generated errors until Integer Sum tests then
no more errors)
OpenMPI 1.3a1r11962: no errors until crash:
COMPLEX SUM TESTS: BEGIN.
COMPLEX SUM TESTS: 1152 TESTS; 864 PASSED, 288 SKIPPED, 0 FAILED.
Signal:11 info.si_errno:0(Success) si_code:1(SEGV_MAPERR)
Failing at addr:0xb6f000
[0] func:/opt/g95/openmpi/1.3/lib/libopal.so.0(opal_backtrace_print
+0x1f) [0x2a95aa7c1f]
*** End of error message ***
COMPLEX AMX TESTS: BEGIN.
Signal:11 info.si_errno:0(Success) si_code:1(SEGV_MAPERR)
Failing at addr:0xe27000
[0] func:/opt/g95/openmpi/1.3/lib/libopal.so.0(opal_backtrace_print
+0x1f) [0x2a95aa7c1f]
*** End of error message ***
3 additional processes aborted (not shown)
Michael
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