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18.03.2020
.
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
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04.12.2013
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
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18.07.2012
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
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19.11.2019
VG Fmt Attr PSize PFree
/dev/nvme0n1 vg-cache lvm2 a-- 232.88g 232.88g
/dev/sdb vg-cache lvm2 a-- <6.37t <6.37t
Say I want to use 90% of the slow disk: I will carve a logical volume labeled slow
from the volume
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20.09.2021
barriers between operating systems.”
Black Lotus has identified a series of samples that were uploaded every two to three weeks, dating back to May 3, 2021, through August 22, 2021. The attacks were
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05.12.2019
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
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20.02.2012
.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
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21.08.2012
: 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
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13.12.2022
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
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22.08.2019
. 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