Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

On 1/24/21 5:25 PM, Animesh Rastogi IIT Gandhinagar wrote: Thank you for your reply. I was able to setup the slepc eigenvalue solver. The issue is that it is taking a lot of time to calculate the smallest eigenvalue for just 1 degrees of freedom. Largest eigenvalue is calculated pretty

Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

Dear Prof. Bangerth, Thank you for your reply. I was able to setup the slepc eigenvalue solver. The issue is that it is taking a lot of time to calculate the smallest eigenvalue for just 1 degrees of freedom. Largest eigenvalue is calculated pretty fast. I tried many solvers in slepc -

Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

On 1/18/21 1:29 PM, Animesh Rastogi IIT Gandhinagar wrote: How should I initialize the "index set" that is required for this function? In step-17

Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

Dear Prof. Bangerth, Thank you for your reply. I have changed the required data structures using PETSc wrappers. I have another doubt regarding this. Since I am running on a single machine, how should I use the reinit() function for PETSc Sparse Matrix. I was thinking to use the (3/5th)

Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

I would like to use SparseDirectMumps to solve the linear system

Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

Dear Prof. Bangerth, Thank you for your explanation. I have converted matrices and vectors into non-blocked objects and have changed them into PETScWrappers::MPI data types. I would like to use SparseDirectMumps to solve the linear system

Re: [deal.II] Finite Strain Compressibility problem with PETSc Data Structures

Thank you for your reply. I tried as you suggested. However, I am getting the following error - /home/animesh/Documents/dealii/dealii-9.2.0/examples/Quasi_Static_Finite_Strain_Beam_Buckling_Analysis/Quasi_Static_Finite_Strain_Beam_Buckling_Analysis.cc:873:20: error: ‘BlockSparseMatrix’ in

[deal.II] Finite Strain Compressibility problem with PETSc Data Structures

Dear Dealii community, I am using a modified version of Code Gallery Quasi Static Compressibility program to compute eigenvalues and eigenvectors of my system matrix. I have