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16%
Building a virtual NVMe drive
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © lassedesignen, 123RF
0 1048575 sr0 With the parted utility, you can create a single partition on each entire HDD: $ for i in sdb sdc sdd sde; do sudo parted --script /dev/$i mklabel gpt mkpart primary 1MB 100
16%
Modern Fortran – Part 2
15.12.2016
Home »  HPC  »  Articles  » 
Fortran 90 was only the start. The next two iterations – 95 and 2003 – pulled Fortran into a new era of programming languages. ... (CIRCLE), INTENT(IN) :: THIS         REAL :: AREA         AREA = PI * THIS%RADIUS**2.0     END FUNCTION CIRCLE_AREA       SUBROUTINE CIRCLE_PRINT(THIS)         TYPE(CIRCLE), INTENT(IN) :: THIS         REAL :: AREA         AREA ... Fortran 90 was only the start. The next two iterations – 95 and 2003 – pulled Fortran into a new era of programming languages.
16%
Security first with the Hiawatha web server
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Tatiana Popov, 123RF.com
-fastcgi are running, as expected. Listing 1 Process List root 589 0.0 0.3 142492 3092 ? Ss 20:35 0:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on; www
16%
Planning Performance Without Running Binaries
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
.05). Once you do the math (1/0.05=20), that is the maximum possible speedup under ideal conditions (i.e., the absolute limit with infinite resources thrown at the problem). Amdahl's Law IBM's Gene Amdahl
16%
Look for Bottlenecks with Open|SpeedShop
21.12.2011
Home »  HPC  »  Articles  » 
.825703   __munmap (libc-2.5.so) 90.514284     90.514284  0.739561   __GI_memcpy (libc-2.5.so) 88.714284     88.942855  0.724854   hypre_SMGSetStructVectorConstantValues (smg2000: smg.c,379) 86.999998     86
16%
What's your status (page)?
28.11.2023
Home »  Archive  »  2023  »  Issue 78: Domai...  » 
Lead Image © Tatiana Venkova, 123RF.com
_http_status_healthy_below = 400 28 poll_delay_dead = 30 29 poll_delay_sick = 10 30 push_delay_dead = 20 31 push_system_cpu_sick_above = 0.90 32 push_system_ram_sick_above = 0.90 33 script_interval = 300 34 local_delay_dead = 40 35
16%
SMART Devices
14.08.2020
Home »  HPC  »  Articles  » 
Capability # smartctl -i /dev/sda smartctl 7.2 2020-07-11 r5076 [x86_64-linux-5.4.0-42-generic] (CircleCI) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START
16%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
records in 1000000+0 records out 512000000 bytes (512 MB) copied, 1.58155 s, 324 MB/s # dd of=file if=/dev/zero bs=512 count=1000000 oflag=direct 1000000+0 records in 1000000+0 records out 512000000 bytes
16%
SMART storage device monitoring
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Sk Design, Fotolia.com
_64-linux-5.4.0-42-generic] (CircleCI) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Samsung based SSDs Device Model
16%
Stretching devices with limited resources
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © Lucy Baldwin, 123RF.com
  1x USB 2.0   1x micro-USB port Expansion 2x 46-pin GPIO headers for I2C, GPIOs, PWM, UART, SPI, MMC Misc Reset button   JTAG interface

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