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24%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
=test test: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=654MiB/s][w=167k IOPS][eta 00m:00s
24%
Parallel Programming with OpenMP
21.11.2012
Home »  HPC  »  Articles  » 
) ! Delta (x and y directions) 101 102 ALLOCATE ( unew(1:m,1:m), u(1:m,1:m) ) ! mem for unew, u 103 104 ! 105 ! Boundary Conditions 106 ! =================== 107 ! 108 pi = DACOS(0.0
24%
Parallel Programming with OpenCL
04.11.2011
Home »  HPC  »  Articles  » 
Gauss 5x5 2 Gauss 12x12 3 Mean 3x3 4 Mean 5x5 5 Emboss ;6 Sharpen 7 Motion blur Figure 2 shows some of the results of these convolutions. Summary and Conclusions The GPU doesn’t guarantee
24%
Warewulf 4 – Environment Modules
20.03.2023
Home »  HPC  »  Articles  » 
, gnu  has versions 8.5 and 12.2. The label after each compiler version (f) indicates that these are files. Figure 2 shows the path (in green) to the file when loading the gnu/8.5  module. After loading
24%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
(One-by-One) 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my_record; 14 int counter_limit; 15
24%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
if less data is requested. Listing 3 IOPS on a Hard Disk # iops /dev/sdb /dev/sdb, 1.00 TB, 32 threads: 512 B blocks: 76.7 IO/s, 38.3 KiB/s (314.1 kbit/s) 1 KiB blocks: 84.4 IO
24%
Tools that extend Bash scripting
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Laschon Maximilian, 123RF.com
't need a working X setup on the system, which is common in the admin world. tput (TUI): Tput is part of the ncurses package supplied with most Linux distributions. At first blush, tput [3] sounds really
24%
Linux Writecache
19.11.2019
Home »  HPC  »  Articles  » 
, ioengine=libaio, iodepth=32 fio-3.1 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct 12 14:39:08 2019   write: IOPS=352
24%
Cross-Vendor IPsec
25.10.2011
Home »  Articles  » 
 
/inet/ike/config for the same partner would look something like Listing 4. Listing 4: /etc/inet/ike/config 02 p1_nonce_len 20 03 p1_xform { auth_method preshared oakley_group 2 auth_alg sha encr_alg 3des } 04 p2_pfs 2 05 { 06
24%
Prepare, analyze, and visualize data with R
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Buchachon Petthanya, 123RF.com
(dayOfYear):as.factor(wday)Monday 16.64 18 8.382 < 2e-16 *** s(dayOfYear):as.factor(wday)Saturday 11.29 18 3.307 3.00e-09 *** s(dayOfYear):as.factor(wday)Sunday 12.92 18 4.843 1.02e-13 *** --- Signif. codes: 0

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