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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

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

6 Compiling Fortran Code $ gfortran -fPIC -shared -c test1.f90 $ gfortran -fPIC -shared -o libtest1.so test1.f90 $ ls -s total 28 8 libtest1.so 4 test1.f90 4 test1.fpy 4 test1.mod 4 test

: 18:59:43 up 2:42, 5 users, load average: 0.05, 0.02, 0.01 n0001: ssh: connect to host n0001 port 22: Connection timed out pdsh@test1: n0001: ssh exited with exit code 255 You can do many other

                                                                         |  54 kB     00:00      (2/7): perl-5.10.1-119.el6_1.1.x86_64.rpm                                                                     |  10 MB     00:08      (3/7): perl-Module-Pluggable-3.90-119.el6

 Packages: (1/6): dhcp-common-4.3.6-47.el8.noarch.rpm                       902 kB/s | 206 kB     00:00     (2/6): dhcp-libs-4.3.6-47.el8.x86_64.rpm                         3.1 MB/s | 147 kB     00:00     (3/6

.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

. Although a little indirect, the concept is straightforward. In the first example, I integrate Cython and Fortran. Fortran/C and Cython The Fortran 90 website, which lists best practices, discusses how

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5420 Octa Quad ARM Cortex-A15 (32KB instruction/32KB data/2MB L2) @1.8GHz, Quad-core ARM Cortex-A7 (32KB/32KB/512KB) @1.3GHz Mali T-628 MP6   3GB LPDDR3e RAM (14.9GBps memory