set LDFLAGS
export mesh with suffix sup
waf build system
skip min_ia_fill, which has memory problem
Merge branch 'master' of hydrogen:suprem4
skip min_ia_fill in time.c
the memory problem of min_fill is found!
fix divide by zero problem
always use direct solver
prevent divide by zero problem
limit the time step increase rate to 2
DO NOT change the time step size...
do not think your are wise enough...
update makefile, 32bit only
slightly relax converge threshold
gcc -O2 caused segfault.
mesh io flip.y fix
Merge branch 'master' of hydrogen:suprem4
prevent doping value like -1e-17 caused positive doping check failed
Merge remote-tracking branch 'origin/master'