-
It may be a good time to start scoping out which discretization and solver libraries the project will use to solve PDEs. It will be important to decide early on what kinds of parallelism will be supp…
-
1.- When using expressions and exporting the model to GAMS, there are some issues with the final expressions. @jsiirola
GAMS error: "More than one operator in a row. You need to use parenthesis"
Tw…
-
I am using the LBFGS solver to optimize a problem with approx. 10000 optimization variables.
The only stopping criterion I set is the maximum number of iterations to 200. All other stopping criteri…
-
# Feature request:
For particular systems we would like to specify arbitrary source functions and corresponding analytic solutions in the input file, e.g. for the Poisson equation solver that I am …
-
Here is the scenario. I am exporting an mfem mesh and grid functions to another visualization tool that only knows about linear elements. I would like to refine the elements some number of times and e…
-
### Summary
- What does this package do? (explain in 50 words or less):
This package provides an interface to the solvers in SUNDIALS C library (https://computation.llnl.gov/projects/sundials). …
sn248 updated
6 years ago
-
#### Summary:
Expose `integrate_ode_adams` to Stan language
#### Description:
Allow Math function `integrate_ode_adams` to be used in Stan language. The function signature and the signature of …
-
I have a system of many coupled equations, where the output of each equation is a matrix. When you have a coupled system of scalar functions, you can just set up `u` and `du` to be `Vector`s, and unpa…
jebej updated
6 years ago
-
@jlperla asked whether using `*` was appropriate. I think this argument shows that it's not just appropriate, but rather helpful. Let's start with iterative solvers for linear systems. Let `A` be a ma…
-
The `TpetraLinearSystem::fillComplete` throws an error when attempting to use periodic BC alongside overset BC. Steps to reproduce, replace inflow/outflow BC in `reg_tests/test_files/oversetHybrid` wi…