on rank 0 starting Test with SION_BUFFERSIZE=-1
on rank 0: bytes_written=100
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=200
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=300
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=400
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=500
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=600
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=700
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=800
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=900
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: bytes_written=1000
on rank 0: bwrote=100 blocksum=    6500 
on rank 0: END of TEST B write
on rank 0: END of TEST B read collective
