[FLASH-USERS] Memory leak when using cray compilers

[Haakon Andresen]

Dear Flash users,


I am experiencing a memory leak when trying to use the cray-compiler environment. The memory monitor

reports an increase in the max  rss and vsize memory. The increasing trend is more or less linear, but shows some variation

with problem and processor.  The issue does not persist when using gnu compilers. I think the issue is related to internode communication,

but I have not been able to track it down.


What I have found so far:

- Occurs in both 2D and 3D

- Occurs in the Sedov and Sod test problems.

- Not every process leaks, but there is no clear pattern either.

- Number of leaking processes is often small compared to the total number of processes

- Occurs for both UG and Paramesh and Uniform Grid.

- Does not occur when running on a single node.

- Seems to happen during guard-cell fills


I found a report in the mailing list archive of a similar issue, but it was related to HYPRE, which

I do not use.


Any input/ideas would be appreciated.


Best,
Haakon



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