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2024-03-06 Thread John Helly via petsc-users
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Re: [petsc-users] Help with SLEPc eigenvectors convergence.

2024-03-06 Thread Jose E. Roman
Pierre's diagnostic is right, but the suggested option is wrong: it should be -eps_target Also, I would suggest using a larger value, such as -eps_target 0. 1, otherwise the tolerance 1e-14 might not be attained. Jose > El 7 mar 2024, a las ZjQcmQRYFpfptBannerStart

Re: [petsc-users] Help with SLEPc eigenvectors convergence.

2024-03-06 Thread Pierre Jolivet
It seems your A is rank-deficient. If you slightly regularize the GEVP, e.g., -st_target 1.0E-6, you’ll get errors closer to 0. Thanks, Pierre > On 6 Mar 2024, at 8:57 PM, Eric Chamberland via petsc-users > wrote: > > This Message Is From an External Sender > This message came from outside

Re: [petsc-users] Compile Error in configuring PETSc with Cygwin on Windows by using Intel MPI

2024-03-06 Thread Satish Balay via petsc-users
> make[3]: *** No rule to make target 'w'. Stop. Try the following to overcome the above error: make OMAKE_PRINTDIR=make all However 3.13.6 is a bit old - so don't know if it will work with these versions of compilers. Satish On Wed, 6 Mar 2024, 程奔 wrote: > Hello, > > > Last time I