H6FT44OI36VOAMFG64WTKUDXMPMPLIMKBDYSBOE7XPPMLSLLIS6AC
assert(rhs_groupdata.numvars == groupdata.numvars);
for (int vi = 0; vi < groupdata.numvars; ++vi) {
assert(rhs_groupdata->numvars == groupdata->numvars);
for (int vi = 0; vi < groupdata->numvars; ++vi) {
CCTK_FullVarName(rhs_groupdata.firstvarindex + vi));
rhs.mfabs.push_back(rhs_groupdata.mfab.at(tl).get());
CCTK_FullVarName(rhs_groupdata->firstvarindex + vi));
rhs.mfabs.push_back(rhs_groupdata->mfab.at(tl).get());