search

MarineRoboticsGroup / cora

The official implementation of the "Certifiably Correct Range-Aided SLAM" algorithm. Implemented in performant C++
25 stars 3 forks source link

LOBPCG occasionally returns NaN as least eigvec/eigval #20

Closed alanpapalia closed 1 year ago

alanpapalia commented 1 year ago

In attempting to compute a 2nd order descent direction via LOBPCG we are occasionally obtaining a NaN value as the least eigenvalue and a vector of NaNs as the corresponding eigenvector. This is currently what is causing a test to fail in https://github.com/MarineRoboticsGroup/cora-plus-plus/pull/19/commits/88648de590e30364e34ab77ca81d80abb3f3dfde

alanpapalia commented 1 year ago

Issue has been resolved AFAIK by https://github.com/MarineRoboticsGroup/cora-plus-plus/pull/19/commits/bb74f162c99761e8b2d55b63aaebed85eb33dc75