+ /opt/ddn/mvapich/bin/mpiexec -ppn 2 -np 4 -genv MV2_NUM_HCAS 1 -genv MV2_CPU_BINDING_LEVEL core -genv MV2_CPU_BINDING_POLICY scatter --hosts isc17-c04,isc17-c05 /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 16384 -b 70590136320 -D 120 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w + tee -a ./output/COUNT:1#NN:2#PPN:2#API:MPIIO#T:16384.txt IOR-3.0.1: MPI Coordinated Test of Parallel I/O ior WARNING: fsync() only available in POSIX. Using value of 0. Began: Mon Oct 22 20:04:23 2018 Command line used: /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 16384 -b 70590136320 -D 120 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w Machine: Linux isc17-c04 Test 0 started: Mon Oct 22 20:04:23 2018 Summary: api = MPIIO (version=3, subversion=0) test filename = /esfs/jtacquaviva/ioperf/file_write access = single-shared-file ordering in a file = random offsets ordering inter file= no tasks offsets clients = 4 (2 per node) repetitions = 3 xfersize = 16384 bytes blocksize = 65.74 GiB aggregate filesize = 262.97 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 = 282360545280. WARNING: Stat() of aggregate file size = 282360512512. WARNING: Using actual aggregate bytes moved = 3078602752. write 24.22 68935680 16.00 0.011510 121.22 0.000340 121.23 0 WARNING: Expected aggregate file size = 282360545280. WARNING: Stat() of aggregate file size = 282360053760. WARNING: Using actual aggregate bytes moved = 3053191168. write 24.01 68935680 16.00 0.015544 121.27 0.000340 121.28 1 WARNING: Expected aggregate file size = 282360545280. WARNING: Stat() of aggregate file size = 282358824960. WARNING: Using actual aggregate bytes moved = 3070181376. write 24.16 68935680 16.00 0.001289 121.18 0.000369 121.18 2 Max Write: 24.22 MiB/sec (25.39 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 24.22 24.01 24.13 0.09 121.23130 0 4 2 3 0 0 1 0 0 1 70590136320 16384 3078602752 MPIIO 0 Finished: Mon Oct 22 20:10:28 2018