on rank 0: after split of communicator: filenum=0 lrank=0 lsize=4
on rank 0: END of TEST A 2 files
siondump: sid:                       1
siondump: filename:                  testA.out                     
siondump: prefix:                    testA.out                     
siondump: number of tasks:           4
siondump: filesystem blocksize:      10 bytes (  0.00 MB)
siondump: file set:                  Yes
siondump: file number:               0
siondump: number of files:           4
siondump: flag1:                     214748364800 (50+0)
siondump: flag2:                     0
siondump: keyval:                    50 (SION_KEYVAL_NONE)
siondump: file format version:       5
siondump: number of blocks:           1
siondump: size of chunks:                                 400 bytes  (    0.00 MB)
siondump: datasize in file (aggr.):                         0 bytes  (    0.00 MB)
siondump: size of full chunks:                              0 bytes  (    0.00 MB) #      0
siondump: size of partly filled chunks:                     0 bytes  (    0.00 MB) #      0
siondump: size of empty chunks:                           400 bytes  (    0.00 MB) #      4
siondump: overhead compared to task-local file:           400 bytes  (    0.00 MB)
siondump: file usage (user data/chunk size):         0.000000%
siondump: fsblocks, size of used blocks:                    0 bytes  (    0.00 MB, 0 blocks)
siondump: fsblocks, size of fully used locks:               0 bytes  (    0.00 MB, 0 blocks)
siondump: fsblocks, size of partly used blocks:             0 bytes of            0 bytes (  0.00 MB of   0.00 MB, 0 blocks)
siondump: fsblocks, used fsblocks/chunk size:         0.000000%

-----------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                      BLK000    
Task 00: size=         0 B glblrnk=   0 #blks= 1 lsz=       100 B:         0 
Task 01: size=         0 B glblrnk=   1 #blks= 1 lsz=       100 B:         0 
Task 02: size=         0 B glblrnk=   2 #blks= 1 lsz=       100 B:         0 
Task 03: size=         0 B glblrnk=   3 #blks= 1 lsz=       100 B:         0 

-----------------------------------------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------
siondump: number of files:           4
siondump: file   1:                    testA.out 
siondump: file   2:                    testA.out.000001 
siondump: file   3:                    testA.out.000002 
siondump: file   4:                    testA.out.000003 
------------------------------------------------------------
  mapping: [00000 -> (f000,t000)] [00001 -> (f001,t000)] [00002 -> (f002,t000)] [00003 -> (f003,t000)] 
------------------------------------------------------------
