Dev/block interface #11

cnpetra · 2019-11-16T00:55:53Z

Mixed Dense-Sparse (MDS) Interface in beta
Simple MDS example coded
Refactorized NlpFormulation and AlgIPMFilter to work with both fully dense, MDS, and completely sparse problem specifications
Implemented MatrixSparseTriplet and MatrixMDS
Implemented IpoptAdapter for HiopInterfaceMDS

Code works fine - valgrind only on Linux - but safe to merge since it does not influence existing users

…onGeneral

…l use)

…mulation

- full Newton IPM will reuse base class

- fixed an issue in reallocating Jacobians after a change in the problem size

- HessianLowRank fakely inherits from a matrix to match the type of FullNewtonIPM Hessian

- code is incomplete

- work in progress

example working

valgrind-ed it

IPOPT complains the Hessian is incorrect (for power balance polar form) for buses that are connected to branches with from bus number greater than to bus number (given in the network file). The finite-difference Hessian calculation for IPOPT shows small differences (of the order e-1) for such buses. A fix for the issue is to reverse the from bus and to bus numbers immediately after the data read. Added a flag `reversed_ends` in the branch data struct to set true for such branchs. The self and mutual admittances for the line also need to be reversed for lines with reversed ends.

Shri/scopflow major refactor Closes #1, #2, #3, #4, #5, #6, #7, #8, #9, #10, #11, #12, #14, #17, #18, and #15 See merge request exasgd/frameworks/scopflow!2

cnpetra added 24 commits November 4, 2019 15:34

added sketch of the interface for mixed sparse dense problems

e4df3cd

updated code comments

28c686c

refactorized the NlpFormulation class in anticipation of NlpFormulati…

e8d7458

…onGeneral

updated get MDS sizes method

26d0d51

added wrapper class for sparse matrices

c8a6923

mixed sparse-dense matrix

1366b03

updated the dense matrix class to work with raw pointers (for interna…

d5c2396

…l use)

added interface and some implementation for symmetric matrix

5da1cd7

added block diagonal MDS matrix and updated the interface and NLP for…

15a210e

…mulation

added size accessor method

f227d1f

refactorized code: moved generic IPM code from QN to a base class

35e9694

- full Newton IPM will reuse base class

updated classes to use generic NLP and LA objects

613d52c

clean up

0ebc8c2

backward compatible with v0.1

7c54c72

- fixed an issue in reallocating Jacobians after a change in the problem size

added sketch of FullNewtonIPM and abstractized Hessian obj

c90c45d

- HessianLowRank fakely inherits from a matrix to match the type of FullNewtonIPM Hessian

added documentation

308b517

fixed an undeclared variable compilation issue in non-MPI builds

21b568a

added mixed dense-sparse Ex4 test problem

4f4d534

- code is incomplete

changed names of some parameters to be more specific

ffba482

fixed a couple of issues in computing Jac and Hess

3a95f49

- work in progress

added Ipopt adapter for HiOpMDSFormulation, driver, and makefile

6fc7c3e

- work in progress

cosmetic

068fb7b

fixed a couple of issues with the problem specification

1aec9da

example working

adapter working properly

ba7e741

valgrind-ed it

cnpetra merged commit 5a1a18c into master Nov 20, 2019

cnpetra deleted the dev/block_interface branch May 28, 2020 15:13

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Dev/block interface #11

Dev/block interface #11

cnpetra commented Nov 16, 2019 •

edited

Loading

Dev/block interface #11

Dev/block interface #11

Conversation

cnpetra commented Nov 16, 2019 • edited Loading

cnpetra commented Nov 16, 2019 •

edited

Loading