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14%
The weak spot of SBCs
04.04.2023
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Lead Image © Lucy Baldwin, 123RF.com
.2MBps matches the hard limit of the Raspberry Pi SD card reader, which is rated at a maximum of 25MBps and reportedly cannot exceed 22MBps in actual use. The Embedded Linux wiki maintains an extensive
14%
Warewulf 4 – Time and Resource Management
17.01.2023
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 yum install ohpc-slurm-server Last metadata expiration check: 0:22:28 ago on Sun 04 Dec 2022 08:29:36 AM EST. Dependencies
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Building a HPC cluster with Warewulf 4
04.04.2023
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Photo by Andrew Ly on Unsplash
$ sudo yum install ohpc-slurm-server Last metadata expiration check: 0:22:28 ago on Sun 04 Dec 2022 08:29:36 AM EST. Dependencies resolved
14%
Measuring the performance of code
04.08.2020
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Lead Image © Lucy Baldwin, 123RF.com
statistic[loops] = { 0 }; 41 42 struct timespec tdummy; 43 stats sdummy[4] = { 0 }; 44 45 for (unsigned probe = 0; probe < probes; ++probe) { 46 uint64_t accu0 = 0; 47 uint64_t accu1 = 0; 48
14%
HDF5 and Parallel I/O
17.05.2017
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, 5 ) / ( 8, 5 ) }       DATA {       (0,0): 0, 1, 2, 3, 4,       (1,0): 5, 6, 7, 8, 9,       (2,0): 10, 11, 12, 13, 14,       (3,0): 15, 16, 17, 18, 19,       (4,0): 20, 21, 22, 23, 24,       (5,0): 25, 26, 27, 28, 29,       (6,0
14%
Embarrassingly parallel computation
01.06.2024
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Lead Image © Lucy Baldwin, 123RF.com
_Comm_size(MPI_COMM_WORLD, &nodenum); 21 long recieved[nodenum]; 22 long recvniter[nodenum]; 23 srand(SEED+myid); //Give rand() a seed value. Needs to be different on each node 24 25 if(myid != 0
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mpi4py – high-performance distributed Python
30.11.2020
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Lead Image © liu liming, 123RF.com
): 11 12 s = 0.0 13 s += h * f(a) 14 for i in range(1, n): 15 s += 2.0 * h * f(a + i*h) 16 # end for 17 s += h * f(b) 18 return (s/2.) 19 # end def 20 21 22 # Main section 23 comm = MPI
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Using a Bash script to mirror external monitors
10.06.2015
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Lead Image © bowie15, 123RF.com
\ \([0-9]\+\)x\([0-9]\+\).*$/\1 \2 \3 \4 \5/p' )" 46 : connected_displays: ${connected_displays[@]} 47 : display_list: "$display_list" 48 49 if [[ -z "$display_list" ]] ; then 50 die "Could not find
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Nagios alerts implemented via VoIP
14.03.2013
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© Zentilia, 123RF.com
http://www.pjsip.org/release/2.0./pjproject-2.0.1.tar.bz2 Next, go to the directory where you unpacked the tarred and zipped file and type: ./configure make dep make You will now have a file starting
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Have a Bash with the Zing network utility
25.09.2023
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Photo by Micah Tindell on Unsplash
: 55 ms. Port: 80: op 2.1. 10.0.0.23 80 Time: 26 ms. Port: 80: op 2.2. 10.0.0.23 80 Time: 56 ms. Port: 80: op 3.1. 10.0.0.23 80 Time: 25 ms. Port: 80: op 3.2. 10.0.0.23 80 Time: 48 ms. Port: 80: op 4

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