The GYRE Forums

I have no doubt that most of the issue lies with DSEP, but I do note that there are clear differences in effectiveness between GYRE 4.4 and GYRE 5+ when it comes to this modeling point specifically. I do not know why. Was there some point at which the organization/handling of fgong files changed si...

Unless Rich picks it up first, I'll try to write a patch that will test the ordering of the radial co-ordinate to decide whether or not it needs to be reversed. I've opened a one-line pull request to fix the one offending line of code but you can change it yourself in the release version and rebuil...

Despite healthy-looking structural output (thanks Warrick for tomso), ... Not sure the structure is that healthy! The model you sent also has a nasty Gamma_1 jump at T=1e6 K: Screenshot from 2019-11-29 10-09-39.png The ridges are out of order, consistently, for every model in my grid. I also note t...

Is this approach justified in order to calculate oscillation frequencies of red giants or do other parameters have to be adjusted or changed in the RGB model? If you mean other parameters in the GYRE input file, you'll possibly have to change the frequency range that you search (depending on how yo...

Hi, 1. I commented out the line photostep = 0 in the inlist_project file for RGB models because otherwise I get the error message "Fortran runtime error: Cannot match namelist object to photostep". Maybe this could have some impact on the convergence. This is a MESA issue, not a GYRE issue but since...

If I'm not mistaken, `build_poly` is only created if you build GYRE with the MAD SDK, not just the MESA SDK. The former includes libraries for solving ODEs (ODEPACK) that aren't included in the latter.

Definitely! The Gamma_1 profile doesn't have that nasty glitch any more and the echelle diagram looks OK.

Hi again, I pestered Tim for a stellar model and he sent me a different model that shows a similar problem. I've been poking around and there are three places where the dimensionless Ledoux discriminant (A=N²r/g) is fishy. One is where the atmosphere is joined onto the model but I tried truncating t...

Hi Meridith, Could you send the stellar model file? When oscillations look weird, I find the equilibrium model is more often at fault than GYRE (or any other oscillation code). Also, what version of GYRE are you using? The attached input file has the old `op_type` control, so I guess you're using so...

I am using macOS Sierra 10.12.6 and the SDK version is 20160404. Hi Jesus, Is there a reason you're using such an old version of the SDK? I've just tried to build GYRE 5.2 with MESA SDK version 20160129 (I'm on Linux) and also get segfaults in the tests, whereas I know it works perfectly with the c...