Search found 23 matches

by jeffjoy
09 Dec 2021, 17:44
Forum: Elmer/Ice
Topic: SyntSMB( Model, Solver, dt, TransientSimulation )
Replies: 0
Views: 2685

SyntSMB( Model, Solver, dt, TransientSimulation )

Hello,in the case MLB,i don't know what's the meaning,did the ELA is glacier is 400 amsl?or 400 is the minimum of the bedDEM?Who knows?and what's the meaning of the 1000? SUBROUTINE SyntSMB( Model, Solver, dt, TransientSimulation ) !-------------------------------------------------------------------...
by jeffjoy
09 Dec 2021, 05:03
Forum: Elmer/Ice
Topic: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!
Replies: 6
Views: 4124

Re: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!

hello, i have used the block preconditioning strategy in the IncompressibleNSVec,but i met a new error in the TemperateIceSolver,error in the picture,so should i put the block preconditioning strategy in the TemperateIceSolver and even the freesurfacesolver? Solver 4 Exec Solver = "Never" ...
by jeffjoy
03 Dec 2021, 10:48
Forum: Elmer/Ice
Topic: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!
Replies: 6
Views: 4124

Re: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!

Hello,I use the 'incompressiveNV' to solve,it doesn't matter, even i set the Convergence Tolerence to 1.0e-1. So,do you know?Thanks! Equation = "Stokes-Vec" Procedure = "IncompressibleNSVec" "IncompressibleNSSolver" Stokes Flow = logical true Div-Curl Discretization = L...
by jeffjoy
26 Nov 2021, 11:12
Forum: ElmerSolver
Topic: Synthetic3D:GridDataReader
Replies: 7
Views: 1101

Re: Synthetic3D:GridDataReader

Hello,I met a new question,in the course Step2, ../SRC/Compute2DNodalGradient: cannot open shared object file: No such file or directory The Compute2DNodalGradient is a Compute2DNodalGradient.f90 file; Then I use the code elmerf90 -o Compute2DNodalGradient.so Compute2DNodalGradient.F90;i met a error...
by jeffjoy
24 Nov 2021, 14:36
Forum: ElmerSolver
Topic: Synthetic3D:GridDataReader
Replies: 7
Views: 1101

Re: Synthetic3D:GridDataReader

kevinarden wrote: 24 Nov 2021, 14:32 That does not install ElmerIce, only Elmer

http://elmerfem.org/elmerice/wiki/doku. ... ationcmake
Thank you!My brother
by jeffjoy
24 Nov 2021, 14:02
Forum: ElmerSolver
Topic: Synthetic3D:GridDataReader
Replies: 7
Views: 1101

Re: Synthetic3D:GridDataReader

It means the GridDataReader solver is not there, it is an ElmerIce solver and does not come with Elmer, you have to install with ElnerIce, How was Elmer installed on your system? I install it using the following code sudo apt-add-repository ppa:elmer-csc-ubuntu/elmer-csc-ppa sudo apt-get update sud...
by jeffjoy
24 Nov 2021, 09:30
Forum: ElmerSolver
Topic: Synthetic3D:GridDataReader
Replies: 7
Views: 1101

Synthetic3D:GridDataReader

I study the new elmer/ice coueses about the Synthetic3D Step1 in the official website,and i have produced the nc files,but when i run the ElmerSolver,i met the error!who konws,please GridDataReader: cannot open shared object file: No such file or directory GridDataReader.so: cannot open shared objec...
by jeffjoy
16 Nov 2021, 13:09
Forum: Elmer/Ice
Topic: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!
Replies: 6
Views: 4124

Re: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!

Hi Try with better preconditioners, in fact you could use the IncompressibleNSVec module that comes with block preconditioner and it custom made for the glaciology community. Black-box cheap precondtioners do not work for all problems. -Peter PS. Please don't sent the same issue to multiple forums....
by jeffjoy
16 Nov 2021, 10:53
Forum: Bug reports
Topic: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!
Replies: 3
Views: 1965

Re: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!

raback wrote: 16 Nov 2021, 02:47 Hi, This is not a bug as it clearly writes what the issue is. Yes, it is undesired but divergence with itertative solvers does happen. -Peter
How should we do to deal with it?
by jeffjoy
15 Nov 2021, 16:56
Forum: Bug reports
Topic: Help!Numerical Error:IterSolver Iterations:too many iterations were needed!
Replies: 3
Views: 1965

Help!Numerical Error:IterSolver Iterations:too many iterations were needed!

The procedure can run before,but recently,I run the procedure in a new machine, it doesn't work,errors! Who knows?please!Error !too many iterations were needed ! in the navier-Stokes equations! Solver 4 Equation = "Navier-Stokes" Stabilization Method = String Stabilized Flow Model = Stokes...