Default engine is BPFile, i.e. as of today, for writing it is always a BP3 engine, for reading it is BP3 or BP4 depending on the file it is opening.
Default engine is BPFile, i.e. as of today, for writing it is always a BP3 engine, for reading it is BP3 or BP4 depending on the file it is opening.

JasonRuonanWang/ADIOS2,ornladios/ADIOS2,ornladios/ADIOS2,JasonRuonanWang/ADIOS2,JasonRuonanWang/ADIOS2,ornladios/ADIOS2,JasonRuonanWang/ADIOS2,ornladios/ADIOS2,ornladios/ADIOS2,JasonRuonanWang/ADIOS2