NVIDIA / NVIDIA/AMGX

very slow at "Parsing configuration string: selector=AGGRESSIVE_PMIS " stage

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usage question
Dominant language
Cuda
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Forks
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Description

The AMGX becomes very slow at the stage
"Parsing configuration string: selector=AGGRESSIVE_PMIS " after I increased the matrix size (matrix B). The dimension of matrix are as follows:
A: NumGlobalRows 7921 NumGlobalNonzeros 745121
B: NumGlobalRows 12321 NumGlobalNonzeros 1687841
For A, it is fast. but for B it is very slow .
Do I have some method to increase this setup process.
I have tried to change the selector to "SIZE_2" , but the systems feedback the infors " the selector is not well for this matrix"
Regards

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Research direction

Begin by reproducing the AMGX setup stage for the reported A and B matrix dimensions, focusing on the configuration string with selector=AGGRESSIVE_PMIS. Compare it with the attempted SIZE_2 selector and determine whether the project documents a supported way to reduce setup time; done means explaining the difference or identifying a validated configuration change.

Written by the indexing model from the issue text.

Assessment

Domain
hpc
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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