
Re: large problem direct sparse solver failed
Ananda Ganesh Madheswaran Oct 27, 2015 11:53 AM (in response to Reza Hojati)Hi Reza,
this is due to more DOF,there is a limitation for direct sparse solver which can solve less than 5 lakhs DOF.
when DOF are more than 5 lakhs the solver will throw this error message and ask us to switch the solver to FFE.

Re: large problem direct sparse solver failed
Reza Hojati Oct 28, 2015 7:39 AM (in response to Ananda Ganesh Madheswaran)dear ananda.i hope all is well with you.thanks for your attention and answer. can i solve this error?

Re: large problem direct sparse solver failed
Janko Stellaard Oct 28, 2015 11:47 AM (in response to Reza Hojati)So it is not an error

Re: large problem direct sparse solver failed
Reza Hojati Oct 28, 2015 4:23 PM (in response to Janko Stellaard)can i solve this problem with 16GB ram and CPU corei7?

Re: large problem direct sparse solver failed
Janko Stellaard Oct 29, 2015 8:13 AM (in response to Reza Hojati)For a 32bit system 1GB is required per 1M DOF if the Sparse solver is used. For larger problems the FFE is recommended. 16GB should do the job, but reconsider setting up your study again, because usually with 7,5M DOF your scope can be narrowed.




Re: large problem direct sparse solver failed
Janko Stellaard Oct 28, 2015 4:10 AM (in response to Ananda Ganesh Madheswaran)How many degrees of freedom (DOF) does your study contain?
The FFE iterative solver should give approximately the same answer.
Gr
Janko Stellaard
Cadmes BV
The Netherlands

Re: large problem direct sparse solver failed
Reza Hojati Oct 28, 2015 7:39 AM (in response to Janko Stellaard)approximately 7,500,000 DOF

Re: large problem direct sparse solver failed
Ananda Ganesh Madheswaran Nov 2, 2015 8:47 AM (in response to Reza Hojati)Hi Reza,
you can definitely solve this using FFE solver.


