My code contains the structure
Table[....,Table[....,{m1,1,N}],{m2,1,M}]
and I would like to use ParallelTable to improve timing. Empirically, I know that ParallelTable[...ParallelTable[...,{}],{}] does not work, so I use
ParallelTable[....,Table[....,{m1,1,N}],{m2,1,M}]
However, these two codes give different results and I do not know why.