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Bug #2047

Potential GCC 8 Hang

Added by Ronak Buch 3 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
01/24/2019
Due date:
% Done:

0%


Description

A NAMD user has emailed the NAMD mailing list with the following:

So you can take pure NAMD/Charmm++, build it with GCC8 compilers and
try to run - you'll receive the same hang behavior (at least on our
computers which are employs the same environment it's true).

Plumed team is already maintains NAMD-2.12 and 2.13 version, but once
again - seems like the problem is related to the newest GCC compilers,
not Plumed

One important note: when hang occurs all dedicated CPUs (i. e., via
namd2 +pN) are fully busy.

Thus, it seems like there may be some issue with gcc 8 or other new versions of the compiler in NAMD or in Charm++.

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