+ /opt/ddn/mvapich/bin/mpiexec -ppn 8 -np 64 -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,isc17-c08,isc17-c09,isc17-c11,isc17-c12 /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 10485760 -b 20132659200 -D 60 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w + tee -a ./output/COUNT:1#NN:8#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: Wed Oct 24 03:06:20 2018 Command line used: /esfs/jtacquaviva/software/install/ior/git-ddn/bin/ior -i 3 -s 1 -t 10485760 -b 20132659200 -D 60 -a MPIIO -e -g -z -k -o /esfs/jtacquaviva/ioperf/file_write -w Machine: Linux isc17-c04 Test 0 started: Wed Oct 24 03:06:20 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 = 64 (8 per node) repetitions = 3 xfersize = 10 MiB blocksize = 18.75 GiB aggregate filesize = 1200 GiB Using stonewalling = 60 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 = 1288490188800. WARNING: Stat() of aggregate file size = 1288395816960. WARNING: Using actual aggregate bytes moved = 230256803840. write 3605 19660800 10240 0.014762 60.90 0.004570 60.92 0 WARNING: Expected aggregate file size = 1288490188800. WARNING: Stat() of aggregate file size = 1288469217280. WARNING: Using actual aggregate bytes moved = 221301964800. write 3471.84 19660800 10240 0.021765 60.77 0.000796 60.79 1 WARNING: Expected aggregate file size = 1288490188800. WARNING: Stat() of aggregate file size = 1288448245760. WARNING: Using actual aggregate bytes moved = 228243537920. write 3593.63 19660800 10240 0.066377 60.50 0.000925 60.57 2 Max Write: 3604.83 MiB/sec (3779.94 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 3604.83 3471.84 3556.77 60.23 60.75853 0 64 8 3 0 0 1 0 0 1 20132659200 10485760 230256803840 MPIIO 0 Finished: Wed Oct 24 03:09:28 2018