unknown asymmetric matrix solver

ebaldwin · February 16, 2014, 19:04

Hello,

I am trying to use the BiCGStab method, but it doesn't appear to be available. I'm running 1.6-ext, and using my own multiphase solver. In my case, the following methods appear to be available,

Unknown asymmetric matrix solver bananna
Valid asymmetric matrix solvers are :
4
(
GAMG
smoothSolver
PBiCG
BICCG
)

The strange thing is, I am able to use BiCGStab in the cavity and damBreak tutorial cases. In cavity, I have the following solvers to choose from,

Unknown asymmetric matrix solver bananna
Valid asymmetric matrix solvers are :
12
(
MPEAMG
GAMG
BiCG
GMRES
RREAMG
amgSolver
smoothSolver
deflation
PBiCG
FPEAMG
BICCG
BiCGStab
)

Can anyone help me understand why I can use BiCGStab with icoFoam in the cavity case, and cannot use it with my own solver in my own case?

Thanks for your help!

mturcios777 · February 17, 2014, 12:45

I would check your Make/options file to see if the same libraries are loaded as icoFoam. If the entries are missing, then the appropriate libraries have not been linked to your solver.

Also, how different is your solver to icoFoam?

ebaldwin · February 17, 2014, 13:07

That was it, I wasn't linking to the lduSolvers library. Adding -llduSolvers to Make/options got me going. Thanks!

February 16, 2014, 19:04	unknown asymmetric matrix solver	#1
ebaldwin New Member Eli Baldwin Join Date: Aug 2013 Posts: 9 Rep Power: 12	Hello, I am trying to use the BiCGStab method, but it doesn't appear to be available. I'm running 1.6-ext, and using my own multiphase solver. In my case, the following methods appear to be available, Unknown asymmetric matrix solver bananna Valid asymmetric matrix solvers are : 4 ( GAMG smoothSolver PBiCG BICCG ) The strange thing is, I am able to use BiCGStab in the cavity and damBreak tutorial cases. In cavity, I have the following solvers to choose from, Unknown asymmetric matrix solver bananna Valid asymmetric matrix solvers are : 12 ( MPEAMG GAMG BiCG GMRES RREAMG amgSolver smoothSolver deflation PBiCG FPEAMG BICCG BiCGStab ) Can anyone help me understand why I can use BiCGStab with icoFoam in the cavity case, and cannot use it with my own solver in my own case? Thanks for your help!

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February 17, 2014, 12:45		#2
mturcios777 Senior Member Marco A. Turcios Join Date: Mar 2009 Location: Vancouver, BC, Canada Posts: 740 Rep Power: 28	I would check your Make/options file to see if the same libraries are loaded as icoFoam. If the entries are missing, then the appropriate libraries have not been linked to your solver. Also, how different is your solver to icoFoam?

February 17, 2014, 13:07		#3
ebaldwin New Member Eli Baldwin Join Date: Aug 2013 Posts: 9 Rep Power: 12	That was it, I wasn't linking to the lduSolvers library. Adding -llduSolvers to Make/options got me going. Thanks!