Generated BP files is two times larger than pnetcdf file

[halehawk]

Recently, I used Scorpio to generate BP files and pnetcdf files from the same contents, but the BP file's data is two times larger than the pnetcdf file. I attached the build option for scorpio/adios.

Do you know if my build options have some issues, or what I can do to make both files the same size? Thanks!