#--------------------------------------------------- # Intel (R) MPI Benchmark Suite V3.2, MPI-1 part #--------------------------------------------------- # Date : Thu May 7 10:55:29 2009 # Machine : i386 # System : Darwin # Release : 9.6.0 # Version : Darwin Kernel Version 9.6.0: Mon Nov 24 17:37:00 PST 2008; root:xnu-1228.9.59~1/RELEASE_I386 # MPI Version : 2.1 # MPI Thread Environment: MPI_THREAD_SINGLE # New default behavior from Version 3.2 on: # the number of iterations per message size is cut down # dynamically when a certain run time (per message size sample) # is expected to be exceeded. Time limit is defined by variable # "SECS_PER_SAMPLE" (=> IMB_settings.h) # or through the flag => -time # Calling sequence was: # IMB-MPI1 PingPong # Minimum message length in bytes: 0 # Maximum message length in bytes: 4194304 # # MPI_Datatype : MPI_BYTE # MPI_Datatype for reductions : MPI_FLOAT # MPI_Op : MPI_SUM # # # List of Benchmarks to run: # PingPong #--------------------------------------------------- # Benchmarking PingPong # #processes = 2 # ( 122 additional processes waiting in MPI_Barrier) #--------------------------------------------------- #bytes #repetitions t[usec] Mbytes/sec 0 1000 3.98 0.00 1 1000 4.20 0.23 2 1000 4.15 0.46 4 1000 4.13 0.92 8 1000 4.19 1.82 16 1000 4.22 3.61 32 1000 4.53 6.73 64 1000 5.03 12.13 128 1000 6.57 18.59 256 1000 7.60 32.11 512 1000 9.49 51.45 1024 1000 13.24 73.73 2048 1000 21.12 92.47 4096 1000 45.04 86.73 8192 1000 61.13 127.79 16384 1000 94.05 166.14 32768 1000 162.60 192.19 65536 640 382.89 163.23 131072 320 659.77 189.46 262144 160 1214.56 205.84 524288 80 2266.02 220.65 1048576 40 4556.54 219.46 2097152 20 8983.40 222.63 4194304 10 17483.50 228.79 # All processes entering MPI_Finalize