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Small number of cores for partition #15464

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fdkong opened this issue Jun 16, 2020 · 0 comments · Fixed by #15465
Closed

Small number of cores for partition #15464

fdkong opened this issue Jun 16, 2020 · 0 comments · Fixed by #15465
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P: normal A defect affecting operation with a low possibility of significantly affects. T: task An enhancement to the software.

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@fdkong
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fdkong commented Jun 16, 2020

Reason

The number of cores for the graph partition can be different from that used
for mesh generation and simulation. Partitioners often become inefficient in
compute time when the number of cores is large (around 10,0000).

Design

A "fix" is to partition the graph using a small number of cores
when the mesh generation and the numerical simulation use a large number of processor cores.

Impact

None
@fdkong fdkong added T: task An enhancement to the software. P: normal A defect affecting operation with a low possibility of significantly affects. labels Jun 16, 2020
fdkong added a commit to fdkong/moose that referenced this issue Jun 16, 2020
@fdkong
Small number of cores for partition
9487c1c 
The number of cores for the graph partition can be different from that used
for mesh generation and simulation. Partitioners often become inefficient in
compute time when the number of cores is large (around 10,0000).
A possible "fix" is to partition the graph using a small number of cores
when the mesh generation and the numerical simulation use a large number of processor cores.

Closes idaholab#15464
fdkong added a commit to fdkong/moose that referenced this issue Jun 16, 2020
@fdkong
Small number of cores for partition
b9e7f4d 
The number of cores for the graph partition can be different from that used
for mesh generation and simulation. Partitioners often become inefficient in
compute time when the number of cores is large (around 10,0000).
A possible "fix" is to partition the graph using a small number of cores
when the mesh generation and the numerical simulation use a large number of processor cores.

Closes idaholab#15464
@fdkong fdkong mentioned this issue Jun 16, 2020
Merged
fdkong added a commit to fdkong/moose that referenced this issue Jun 16, 2020
@fdkong
Small number of cores for partition
6fa6e0c 
The number of cores for the graph partition can be different from that used
for mesh generation and simulation. Partitioners often become inefficient in
compute time when the number of cores is large (around 10,0000).
A possible "fix" is to partition the graph using a small number of cores
when the mesh generation and the numerical simulation use a large number of processor cores.

Closes idaholab#15464
fdkong added a commit to fdkong/moose that referenced this issue Jun 17, 2020
@fdkong
Small number of cores for partition
8274901 
The number of cores for the graph partition can be different from that used
for mesh generation and simulation. Partitioners often become inefficient in
compute time when the number of cores is large (around 10,0000).
A possible "fix" is to partition the graph using a small number of cores
when the mesh generation and the numerical simulation use a large number of processor cores.

Closes idaholab#15464
fdkong added a commit to fdkong/moose that referenced this issue Jun 17, 2020
@fdkong
Small number of cores for partition
89e10e1 
The number of cores for the graph partition can be different from that used
for mesh generation and simulation. Partitioners often become inefficient in
compute time when the number of cores is large (around 10,0000).
A possible "fix" is to partition the graph using a small number of cores
when the mesh generation and the numerical simulation use a large number of processor cores.

Closes idaholab#15464
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P: normal A defect affecting operation with a low possibility of significantly affects. T: task An enhancement to the software.
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Small number of cores for partition fdkong/moose
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@fdkong