Crash during free energy calculation (MCTI)

From: Grzegorz Jezierski (
Date: Wed Aug 24 2005 - 02:47:07 CDT

Dear NAMD users,
When running a long (3ns) TI calculation with PMF restraints on a
dihadral angle, NAMD crashes very often.
The simulations are run on a single box (2 processors) of a cluster, so
there is no inter-node communication.
I get either of the two error messages given below, but mostly the first
one. Is this may be due to badly compiled NAMD?
Thank you

Charmrun: error on request socket--
Socket closed before recv.

------------- Processor 0 Exiting: Caught Signal ------------
Signal: segmentation violation
Suggestion: Try running with '++debug', or linking with '-memory paranoid'.
req_handle_abort called
Fatal error on PE 0> segmentation violation


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