- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
We have small matrices we're attempting to multiply, and sometimes it crashes. Not every time, and when it works the results appear to be correct.
# SIGSEGV (0xb) at pc=0x00007f39486428ec, pid=15934, tid=0x00007f3934a26700
siginfo: si_signo: 11 (SIGSEGV), si_code: 2 (SEGV_ACCERR), si_addr: 0x00007f3bd40bc000
Problematic frame: # C [libmkl_mc3.so+0xcc08ec] mkl_dft_mc3_gather_d_d+0xcc
Arguments to the function:
A is 18x24
B is 18x28
C is 24x28
transa: T
matdescra: "G F "
m:18
n:28
k:24
nnz:119
alpha: 1
beta: 0
ldb: 18
ldc: 24
Are we calling the function incorrectly somehow? It appears like every time it crashes the process is attempting to read 32 bytes past the end of B's allocated space. Our theory is that it "works" when that memory is part of the process address space and crashes when it's not.
Link Copied
1 Reply
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
At the first glance everything look correct. Could you give the example of this problem to check/debug problem on our side with the latest versions of MKL?
Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page