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65%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
->tv_nsec) * 1E-9; 24 } 25 26 int main(int argc, char* argv[argc+1]) { 27 if (argc < 2) { 28 fprintf(stderr, "Usage: %s NNN, NNN iterations\n", 29 argv[0]); 30 return EXIT_FAILURE; 31 } 32
65%
Processor and Memory Metrics
12.02.2014
Home »  HPC  »  Articles  » 
B       hald-addon-input   ...    22.9 MiB +   4.0 MiB =  26.9 MiB       plasma-desktop  26.0 MiB +   5.7 MiB =  31.7 MiB       konsole (3)  28.3 MiB +   4.4 MiB =  32.7 MiB       kwin  41.0 MiB +   2.0 MiB =  43.0 MiB       Xorg 146.9
65%
Automated builds using CentOS 7 and Kickstart
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Icetray, fotolia.com
fecbc1a5ad080b0efd 74680c6e1f4b28fb2c7ff419872418-c7-x86_64-comps.xml.gz /var/www/html/repodata/ 03 [root@localhost ~]# gunzip /var/www/html/repodata/4b9ac2454536a901 fecbc1a5ad080b0efd74680c6e1f
65%
Static code analysis finds avoidable errors
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Andrey KOTKO, 123RF.com
.e., output all warnings) shows in Listing 4. Listing 3 Splint Warnings splint -strict example1.c Splint 3.1.2 --- 11 May 2019 example1.c: (in function main) example1.c:9:5: Format string
65%
Programming with OpenMP
07.11.2011
Home »  HPC  »  Articles  » 
OpenMP brings the power of multiprocessing to your C, C++, and Fortran programs. ...  ‑Wall ‑fopenmp helloworld.c $ export OMP_NUM_THREADS=4 [...] $ ./a.out Hello World from thread 3 Hello World from thread 0 Hello World from thread 1 Hello World from thread 2 There are 4 threads If you ... OpenMP brings the power of multiprocessing to your C, C++, and Fortran programs.
64%
Detecting malware with Yara
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image © Mohamad Razi Bin Husin, 123RF.com
_string3= {9E 68 2B C2 99 6A 59 F7 F9 8D 30} 07 Conditions: 08 $test_string1 or $test_string2 or $test_string3 09 } In Listing 2, I tell Yara to look for the strings that my
64%
An army of Xeon cores to do your bidding
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © Lucy Baldwin, 123RF.com
Dell Precision Workstation T7910 Power 1,300W CPU 2x Intel Xeon Gold E5-2699 V4, 22 cores, 2.4GHz, 55MB of cache, LGA 2011-3 GPU, NPU n/a* Memory
64%
OpenACC – Porting Code
07.03.2019
Home »  HPC  »  Articles  » 
 acc parallel loop       {          for (j=0; j < m; j++) {             ...          }       }       ...    } } Table 3: Single-Directive Nested Loop Fortran C !$acc parallel loop    do i=1,n       ...       do
64%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
compute server (Figure 3) [11]. Dependancies for this code on Ubuntu 22.04 are easily sourced: Figure 3: Shockwave is put to use running numerical
64%
Thrashing the data cache for fun and profit
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Lucy Baldwin, 123RF.com
). Figure 1: Flattening a 2D array in C or C++. Listing 3 inspect.c #include ** int a[4][5] = { // array of 4 arrays of 5 ints each, a 4x5 matrix { 1, 2, 3

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