+ /opt/ddn/mvapich/bin/mpiexec -ppn 6 -np 24 -genv MV2_NUM_HCAS 1 -genv MV2_CPU_BINDING_LEVEL core -genv MV2_CPU_BINDING_POLICY scatter --hosts isc17-c04,isc17-c05,isc17-c06,isc17-c07 /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 16384 -b 26843545600 -D 120 -a POSIX -F -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w + tee -a ./output/COUNT:1#NN:4#PPN:6#API:POSIX#T:16384.txt IOR-3.0.1: MPI Coordinated Test of Parallel I/O Began: Tue Oct 23 18:11:22 2018 Command line used: /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 16384 -b 26843545600 -D 120 -a POSIX -F -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w Machine: Linux isc17-c04 Test 0 started: Tue Oct 23 18:11:22 2018 Summary: api = POSIX test filename = /esfs/jtacquaviva/ioperf/file_write access = file-per-process ordering in a file = random offsets ordering inter file= no tasks offsets clients = 24 (6 per node) repetitions = 3 xfersize = 16384 bytes blocksize = 25 GiB aggregate filesize = 600 GiB Using stonewalling = 120 second(s) access bw(MiB/s) block(KiB) xfer(KiB) open(s) wr/rd(s) close(s) total(s) iter ------ --------- ---------- --------- -------- -------- -------- -------- ---- WARNING: Expected aggregate file size = 644245094400. WARNING: Stat() of aggregate file size = 644230332416. WARNING: Using actual aggregate bytes moved = 40317681664. write 260.19 26214400 16.00 0.002650 147.77 0.001447 147.77 0 WARNING: Expected aggregate file size = 644245094400. WARNING: Stat() of aggregate file size = 644241883136. WARNING: Using actual aggregate bytes moved = 35624615936. write 232.62 26214400 16.00 0.016533 146.04 0.001388 146.05 1 WARNING: Expected aggregate file size = 644245094400. WARNING: Stat() of aggregate file size = 644233265152. WARNING: Using actual aggregate bytes moved = 35871342592. write 231.20 26214400 16.00 0.003769 147.96 0.001395 147.96 2 Max Write: 260.19 MiB/sec (272.83 MB/sec) Summary of all tests: Operation Max(MiB) Min(MiB) Mean(MiB) StdDev Mean(s) Test# #Tasks tPN reps fPP reord reordoff reordrand seed segcnt blksiz xsize aggsize API RefNum write 260.19 231.20 241.34 13.34 147.26318 0 24 6 3 1 0 1 0 0 1 26843545600 16384 40317681664 POSIX 0 Finished: Tue Oct 23 18:18:45 2018