AIJ and BAIJ convertion

[SUN Chun]

Hi, 

I created a matrix with AIJ format. I knew the structure of this matrix should 
also fit BAIJ type with some certain block size (say 6). Now instead of 
creating another BAIJ matrix then fill in the values again, do I have an easier 
way to convert this AIJ matrix to BAIJ matrix with given block size? I'm 
willing to allocate another memory for the new matrix.

Thanks,
Chun