12-02-2023, 08:41 PM
[Posting here too for archival purposes]
While working on K6ROT, I decided to run a simple Femap 2x2 flat plate model on MYSTRAN.
This triggers a nondeterministic crash: half of the runs yield a segfault, the other half finish with a fatal error when calling the SuperLU matrix factorization subroutine.
Of course, these decks were auto-generated by Femap, so they're nowhere near hand-crafted quality. Still, no deck, no matter how corrupt, should trigger an illegal memory access.
Attached are two version of the deck: the one exported from Femap as-is, and another with some slight changes to make it more affable to MYSTRAN (to no avail).
Something in this deck is causing MYSTRAN to pass bad data to SuperLU. I'm looking into what, how, and a fix -- but any input is appreciated.
Thanks!
While working on K6ROT, I decided to run a simple Femap 2x2 flat plate model on MYSTRAN.
This triggers a nondeterministic crash: half of the runs yield a segfault, the other half finish with a fatal error when calling the SuperLU matrix factorization subroutine.
Of course, these decks were auto-generated by Femap, so they're nowhere near hand-crafted quality. Still, no deck, no matter how corrupt, should trigger an illegal memory access.
Attached are two version of the deck: the one exported from Femap as-is, and another with some slight changes to make it more affable to MYSTRAN (to no avail).
Something in this deck is causing MYSTRAN to pass bad data to SuperLU. I'm looking into what, how, and a fix -- but any input is appreciated.
Thanks!