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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0006035 | ParaView | (No Category) | public | 2007-11-09 14:28 | 2009-05-13 13:59 | ||||
| Reporter | David Karelitz | ||||||||
| Assigned To | Berk Geveci | ||||||||
| Priority | high | Severity | crash | Reproducibility | always | ||||
| Status | closed | Resolution | duplicate | ||||||
| Platform | OS | OS Version | |||||||
| Product Version | |||||||||
| Target Version | 3.4 | Fixed in Version | 3.4 | ||||||
| Summary | 0006035: (MARS-immediate) 0th process using too much memory | ||||||||
| Description | When opening and performing operations on a large CTH AMR dataset, the 0th node uses way too much memory. Order 3-4 GB on the 0th node vs 640 MB on other nodes. There was a CTH reader, CellToPoint, Contour, Calculator, TimeToText, and TextSource in the pipeline and we tried to save a movie and disconnect. | ||||||||
| Tags | No tags attached. | ||||||||
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(0009690) David Karelitz (reporter) 2007-11-15 16:45 |
There appear to be 2 issues with respect to memory usage. These are from a separate run than that in the description 1. When I clip by scalar value with an incorrect value (that results in more elements than the correct value), the memory is not released for the first incorrect clip value. 2. When I choose save and disconnect, memory usage on the 0th node jumps from 33% to 85% and uses an additional 2-4% per frame. This is on an 8 GB machine. The dataset is AMRCTH running on 120 nodes |
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(0009691) David Karelitz (reporter) 2007-11-15 16:50 |
It's 4 GB of memory per node, not 8GB |
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(0010104) David Karelitz (reporter) 2008-01-10 11:11 |
When we switched the 0th node to a node with 12GB of memory, performance was an order of magnitude faster. The rest of the nodes were the same as before |
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(0011159) Ken Moreland (manager) 2008-04-08 13:02 |
This problem is really caused by a bug in OpenMPI and the way that messages are passed from node 0 to the rest of the nodes. I opened a new bug that more specifically addresses the problem. |
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(0011188) Alan Scott (manager) 2008-04-08 17:56 |
I agree with ken. This is an open mpi bug, not related to the bug description listed below. Solution is th change MPI_Send to MPI_Ssend, until the bug in the OpenMPI library is fixed. I believe the file is MPICommunication.cxx or something like that. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2007-11-09 14:28 | David Karelitz | New Issue | |
| 2007-11-15 16:45 | David Karelitz | Note Added: 0009690 | |
| 2007-11-15 16:50 | David Karelitz | Note Added: 0009691 | |
| 2007-11-19 18:19 | David Karelitz | Summary | 0th process using too much memory => (MARS-immediate) 0th process using too much memory |
| 2007-12-05 13:13 | Alan Scott | Status | backlog => tabled |
| 2007-12-05 13:13 | Alan Scott | Assigned To | => Berk Geveci |
| 2008-01-10 11:11 | David Karelitz | Note Added: 0010104 | |
| 2008-03-07 07:56 | Berk Geveci | Target Version | => MARS |
| 2008-03-07 08:03 | Berk Geveci | Category | => 3.4 |
| 2008-04-08 13:01 | Ken Moreland | Relationship added | duplicate of 0006773 |
| 2008-04-08 13:02 | Ken Moreland | Duplicate ID | 0 => 6773 |
| 2008-04-08 13:02 | Ken Moreland | Status | tabled => @80@ |
| 2008-04-08 13:02 | Ken Moreland | Resolution | open => duplicate |
| 2008-04-08 13:02 | Ken Moreland | Note Added: 0011159 | |
| 2008-04-08 17:56 | Alan Scott | Status | @80@ => closed |
| 2008-04-08 17:56 | Alan Scott | Note Added: 0011188 | |
| 2009-05-13 13:58 | Utkarsh Ayachit | Target Version | MARS => 3.4 |
| 2009-05-13 13:59 | Utkarsh Ayachit | Fixed in Version | => 3.4 |
| 2011-06-16 13:10 | Zack Galbreath | Category | => (No Category) |
| Issue History |
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