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December 12, 2013, 08:09 |
core dump - engrid or machine limitation
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#1 |
New Member
Georg Brösigke
Join Date: Nov 2012
Posts: 6
Rep Power: 13 |
Dear Bruno, dear Oliver,
for a mesh resolution study I would like to generate a mesh as fine as possible. At the moment I struggle to generate a boundary layer, where the surface mesh contains more than 2M surface cells (engrid 1.4). (Error: 3698 Speicherzugriffsfehler (Speicherabzug geschrieben)) In the old forum I read that only volume meshes of ~8M cells were generated in engrid so far (in 2010), so I ask myself if the limitation in engrid is reached or if my machine limits me in generating finer Meshes (32 GB RAM, no swap) As far as I see, the memory is not consumed at time of abortion... What Meshsize is known to be generated successfully? best regards Georg |
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December 15, 2013, 14:53 |
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#2 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,975
Blog Entries: 45
Rep Power: 128 |
Hi Georg,
Are you positive that the engrid binary was built as a 64bit application? You can confirm this by running: Code:
file engrid Code:
file $(which engrid) Code:
engrid: ELF 64-bit LSB executable, x86-64 Bruno |
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December 15, 2013, 15:06 |
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#3 |
New Member
Georg Brösigke
Join Date: Nov 2012
Posts: 6
Rep Power: 13 |
Dear Bruno,
yes, I can confirm that engrid was built as 64bit application. Got the output Code:
engrid: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x5a355b4b14a461551d3c213e1cea9fd2c66bf454, not stripped |
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December 25, 2013, 12:55 |
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#4 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,975
Blog Entries: 45
Rep Power: 128 |
Hi Georg,
I'm on vacation these coming days, so I could use more specific information on the kind of test case I should be trying to do (number of surface mesh faces, volume mesh characteristics and so on). If you could share such a case would be great. Because if my guess is correct, there is a limitation in the number of faces count to 2 million or 4 million, but I need a test case to isolate this. Best regards, Bruno
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