[Trilinos-Users] [EXTERNAL] question about MueLu (AMG) setting
Ouchi Hisanao
ouchi at joe.co.jp
Fri Jul 10 17:46:05 EDT 2015
Hi Andrey,
Thank you very much for your reply.
According to your advice, I modified my input deck based on a new style
(please see the bottom of my email) and simply add the following sentence
as you suggested.
<Parameter name="repartition: enable" type="bool" value="true"/>
However, I could not execute my code successfully since the following error
message appeared.
-------------- ---------------------------- error messeage
-------------------------------------------
terminate called after throwing an instance of
'MueLu::Exceptions::RuntimeError'
what(): CoordinatesTransferFactory::DeclareInput: (LevelID = 0) unable
to find or generate requested data "Coordinates" with generating factory
"null"
during request for data " Coordinates" on level 0 by factory
CoordinatesTransferFactory
during request for data " Coordinates" on level 1 by factory
RebalanceTransferFactory
during request for data " P" on level 1 by factory
NoFactory
-----------------------------------------------------------------------------------------------------------
This error message appears not only in my program in my Ubuntu but also in
the sample code in the MueLu virtual machine image distributed by Sandia as
a tutorial. In the case of the MueLu virtual machine image, I just added
the following sentence in the simplest example input deck (n1_easy.xml)
and executed the simplest example problem in the MueLu tutorial (Laplace 2D
50x50).
<Parameter name="repartition: enable" type="bool" value="true"/>
Do you have any idea to resolve this error?
Best regards,
Hisanao
----------------------------- modified input deck
-------------------------------------
<ParameterList name="MueLu">
<Parameter name="verbosity" type="string" value="high"/>
<Parameter name="max levels" type="int" value="10"/>
<Parameter name="coarse: max size" type="int" value="10"/>
<Parameter name="multigrid algorithm" type="string" value="sa"/>
<Parameter name="sa: damping factor" type="double" value="1.0"/>
<!-- Smoothing -->
<!-- Comment/uncomment different sections to try different smoothers -->
<Parameter name="smoother: type" type="string" value="ILUT"/>
<!-- Rebalancing -->
<Parameter name="repartition: enable" type="bool" value="true"/>
<!-- Aggregation -->
<Parameter name="aggregation: type" type="string" value="uncoupled"/>
<Parameter name="aggregation: min agg size" type="int" value="4"/>
</ParameterList>
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