4.4 release

Announcements about new GYRE releases and other stuff
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rhtownsend
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4.4 release

Post by rhtownsend » Sun Apr 03, 2016 10:58 pm

I'm pleased to announce the release of version 4.4 of GYRE.

This version introduces no new features, but fixes a couple of bugs, and restores the capability of the MAGNUS_GL2 IVP scheme to converge well during non-adiabatic calculations on certain types of stars.

Although the COLLOC_GL[2,4,6] remain the preferred schemes for non-adiabatic calculations, there are some circumstances where they require many iterations to converge, or fail to converge at all. The MAGNUS_GL2 scheme can work well in these circumstances, using a numerical approach I term "eigenvalue rescaling". In version 4.1 of GYRE the code which performs the eigenvalue rescaling was modified, in a way that sometimes doesn't work correctly. Version 4.4 reverts the code back to the original functionality.

As usual, the source code can be downloaded from

https://bitbucket.org/rhdtownsend/gyre/downloads/

Rich

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