init_3_timelevels seems to fail on Maxwell

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Issue #662 closed
Yosef Zlochower created an issue

If I use the carpet::init_3_timelevels=yes I get the following error WARNING level 0 in thorn CarpetLib processor 0 host quasar.ccrg.rit.edu (line 385 of /home/yosef/ET/Maxwell/Cactus/configs/lazev/build/CarpetLib/gdata.cc): -> Internal error: extrapolation in time. variable=ADMBASE::alp time=1280 times=[2560,4955,2395] WARNING level 0 in thorn CarpetLib processor 0 host quasar.ccrg.rit.edu (line 385 of /home/yosef/ET/Maxwell/Cactus/configs/lazev/build/CarpetLib/gdata.cc): -> Internal error: extrapolation in time. variable=ADMBASE::alp time=1280 times=[2560,4955,2395]

This error message did not occur when I ran with the previous

Keyword: init_3_timelevels

Comments (5)

  1. Yosef Zlochower reporter
    • removed comment

    The problem is due to an interaction of MoL at Initial and Carpet. The OldStyle boundary routines modify cctk_delta_time, which Carpet interprets as a change in CFL factor. Removing the OldStyle boundary routines seems to fix the problem.

  2. Erik Schnetter
    • removed comment

    Do you want to suggest this as official solution? To my knowledge, only you (RIT) is using these.

  3. Yosef Zlochower reporter
    • removed comment

    We no longer use OldStyle BCs. So removing them will affect the RIT codes.

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