amgcl
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ddemidov
C++ library for solving large sparse linear systems with algebraic multigrid method
Hi Dennis I am assembling FE equations locally on each processor (or thread), what ingredients do I need to solve the system in parallel? it appears to be solving on...
Hi, I am using several AMD Radeon VII with MPI vexcl backend, compiled with boost 1.72, and I have observed different results (number of iterations) using different OpenCL drivers: Radeon™...
See #144. An interesting discussion: - [minres vs gmres](https://lists.mcs.anl.gov/pipermail/petsc-users/2011-March/008101.html) Reference implementations: - [scipy](https://github.com/scipy/scipy/blob/v1.4.1/scipy/sparse/linalg/isolve/minres.py#L11-L343) - [petsc](https://www.mcs.anl.gov/petsc/petsc-current/src/ksp/ksp/impls/minres/minres.c.html)
I have a program that I run multiple times. Each time the program runs it uses the same linear system `A` and solves `Ax=b` (using AMGCL) with a different right-hand...
Hi Denis, I'd like to run OpenFOAM in a hybrid mode using CPU(s)+GPU(s), splitting the workload between CPU(s) and GPU(s) on a single node/workstation, using the GPU(s) as booster(s). This...
It seems like the parameter names used to control AMG and solver settings are pretty different for the MPI vs. non-MPI versions of the runtime AMGCL interface. For example, in...
Is there any way to install and build the AMGCL library via vcpkg?
The use of AMG and ILU0 preconditioners is somehow adding dissipation to the solution of the Euler equations discretized with a discontinuous Galerkin (DG) method. This result is particularly interesting...
Recently our group has implemented an additive (splitting) scheme (of Samarskii and Vabishchevich) https://www.researchgate.net/publication/51962589_Additive_schemes_splitting_schemes_for_some_systems_of_evolutionaryequations to solve the ground water flow equation https://en.wikipedia.org/wiki/Groundwater_flow_equation The problem is essentially a single-phase approximation for...
I have an mm file generated by Trilinos package with 3cpus. but the ordering of the rows is not by the natural sequences. It is based on the ordering of...
