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and 32MB of DRAM memory. The J90 supported up to 32 vector processors at 100MHz and up to 4GB of main memory. Each processor was two chips: one for the scalar portion of the architecture and the second

written = 216,707,618 (216.707618 MB) Number of Write function calls = 35,369 Average (mean) bytes per call = 6,131.210016 (bytes) (0.006131 MB)   Standard Deviation bytes per call = 112

written = 216,707,618 (216.707618 MB) Number of Write function calls = 35,369 Average (mean) bytes per call = 6,131.210016 (bytes) (0.006131 MB)   Standard Deviation bytes per call = 112

In the second article of this three-part series, we look at simple write examples in Fortran 90 and track the output with strace to see how it affects I/O patterns and performance. ... common in HPC to illustrate these differences: C, Fortran 90, and Python (2.x series). I run the examples on a single 64-bit system with CentOS 6.2 using the default GCC compilers, GCC and GFortran (4.4.6 ... In the second article of this three-part series, we look at simple write examples in Fortran 90 and track the output with strace to see how it affects I/O patterns and performance. ... Tuning I/O Patterns in Fortran 90

. The simple MPI used is the classic 2D Poisson equation solver, poisson_mpi , which I procured from an online set of Fortran 90 examples. HPCCM HPC Container Maker (HPCCM) was used to create the specification

.51, 0, 0.36, 17.74, 0.00, 6.38, 90, 0 2012-01-09 21:10:00, 92, 4.42, 0, 0.35, 20.81, 0.00, 7.22, 100, 0 2012-01-09 21:12

Currently Loaded Modulefiles: 1) compilers/open64/5.0 [laytonjb@n0001 ~]$ more test.f90 program test write(6,*) ‘hello world’ stop end [laytonjb@n0001 ~]$ openf90 test.f90 -o test [laytonjb@n0001

{ 14 use generic-service 15 host_name w2k12srv 16 service_description CPU Load 17 check_command check_nt!CPULOAD!-l 5,80,90 18 } 19 define service{ 20

Size Used Avail Use% Mounted on none 1.5G 274M 1.2G 19% / tmpfs 1.5G 0 1.5G 0% /dev/shm 10.1.0.250:/var/chroots/sl6.2 53G 33G 18G

      total packets:                 sent:  12,243,355   recv:  1,467,914    bytes sent:                   total:  16.90 G      per-sec:  3.22 M/s    bytes recv:                   total:  114.04 M