+ /opt/ddn/mvapich/bin/mpiexec -ppn 8 -np 16 -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 10485760 -b 17647534080 -D 120 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w + tee -a ./output/COUNT:1#NN:2#PPN:8#API:MPIIO#T:10485760.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 13:41:38 2018 Command line used: /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 10485760 -b 17647534080 -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 13:41:38 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 = 16 (8 per node) repetitions = 3 xfersize = 10 MiB blocksize = 16.44 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 = 282360545280. WARNING: Using actual aggregate bytes moved = 282192773120. write 2344.11 17233920 10240 0.011842 114.79 0.000332 114.81 0 WARNING: Expected aggregate file size = 282360545280. WARNING: Stat() of aggregate file size = 282360545280. WARNING: Using actual aggregate bytes moved = 278984130560. write 2215.66 17233920 10240 0.019871 120.06 0.002100 120.08 1 WARNING: Expected aggregate file size = 282360545280. WARNING: Stat() of aggregate file size = 282360545280. WARNING: Using actual aggregate bytes moved = 282182287360. write 2296.57 17233920 10240 0.002185 117.18 0.000731 117.18 2 Max Write: 2344.11 MiB/sec (2457.98 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 2344.11 2215.66 2285.45 53.03 117.35580 0 16 8 3 0 0 1 0 0 1 17647534080 10485760 282192773120 MPIIO 0 Finished: Mon Oct 22 13:47:37 2018