[mesa-users] Convergence problem with rotating very massive model

[Ehsan Moravveji]

Hello all,
I would like to check if a Galactic massive star, at say 60 Msun, can
reach the Wolf-Rayet phase. The purpose is to see if MESA can reproduce
results of Georgy et al. (2012, A&A); initially, their Figure 1.
The attached inlist tries to make the initialization as close as possible
to Georgy et al.
For this, I did ./rn and it gives a convergence error:

        mdot rotation_enhancement factor    2.8840315031266050D+09   
1.0000000000000000D+00
    1st model retry: new log10 dt/secyer   -6.5000000000000000D+00
 retry
        mdot rotation_enhancement factor    2.8840315031266050D+09   
1.0000000000000000D+00
 retry
        mdot rotation_enhancement factor    2.8840315031266050D+09   
1.0000000000000000D+00
    1st model retry: new log10 dt/secyer   -8.8010299956639813D+00
 retry
        mdot rotation_enhancement factor    2.8840315031266050D+09   
1.0000000000000000D+00
 retry
        mdot rotation_enhancement factor    2.8840315031266050D+09   
1.0000000000000000D+00
    1st model retry: new log10 dt/secyer   -1.1704119982655925D+01
 retry
        mdot rotation_enhancement factor    2.8840315031266050D+09   
1.0000000000000000D+00

 stopping because of convergence problems -- too many backups




 terminated evolution: convergence problems

          1   6.161591   4682.697 -10.932952 -10.932952  60.000000 
60.000000   0.720000   0.000706   0.266000   0.720000 -12.031373
   966      3
  -Infinity  -3.914618   2.622773 -99.000000 -12.330820 -99.000000  
0.000000   0.266000   0.006552   0.014000   0.266000   0.008964     14  
   2
 0.0000E+00  10.546468   5.203662 -99.000000   2.781446  -8.702539  
0.000000   0.002409   0.001470  1.400E-02  1.

I have to mention that this does NOT occur with non-rotating models.
How can I trace back this problem?
I run SDK-type MESA v.4236 with OMP_NUM_THREADS=3, on a Mac.

Thanks for your concern.
Ehsan.
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