Latest revision as of 13:59, 26 January 2018

Cortex is a server used by VisLab for running simulations (not the ones with the iCub robot).

Old information can be consulted at Cortex/Archive.

Specifications

As of 2017, there is one machine (cortex1) with these specs:

8 x i7-3770K @ 3.50GHz processor
16GB of memory (sudo dmidecode --type 17 to see RAM speed and type)
112GB SSD drive + 1TB HDD drive
NVidia GeForce GTX 670 graphics card (CUDA)
internal ISR IP address: 10.10.1.1

@@ Line 1: / Line 1: @@
-Cortex is a server used by VisLab for '''development''' purposes (by contrast, the [[iCubBrain server configuration | iCubBrain]] servers are used for demos).
+Cortex is a server used by VisLab for running simulations (not the ones with the iCub robot).
 ''Old information can be consulted at [[Cortex/Archive]].''
@@ Line 5: / Line 5: @@
 = Specifications =
-Since summer 2012, there is one machine (cortex1) with these specs:
+As of 2017, there is one machine (cortex1) with these specs:
 * 8 x [http://ark.intel.com/products/65523/Intel-Core-i7-3770K-Processor-(8M-Cache-up-to-3_90-GHz) i7-3770K] @ 3.50GHz processor
 * 16GB of memory (<code>sudo dmidecode --type 17</code> to see RAM speed and type)
-* 112GB SSD drive
+* 112GB SSD drive + 1TB HDD drive
 * NVidia [http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-670 GeForce GTX 670] graphics card (CUDA)
+* internal ISR IP address: 10.10.1.1
-= Operating system installation =
-In general, follow the guidelines at [[VisLab machines configuration]]. Below are some special notes.
-= Additional software =
-On this cluster, each user should manage his own yarp and iCub repositories. As a result, '''do not''' use system-wide installation of those (<strike><code>sudo make install</code></strike>): instead, simply use <code>make</code> and set your environment variables.
-== YARP and iCub ==
-The yarp and iCub repositories are installed for user 'icub', similarly to [[iCubBrain server configuration]].
-= Customization =
-== Network tuning ==
-   sysctl -w net.core.rmem_max=8388608
-   sysctl -w net.core.wmem_max=8388608
-   sysctl -w net.core.rmem_default=65536
-   sysctl -w net.core.wmem_default=65536
-   sysctl -w net.ipv4.tcp_rmem='4096 87380 8388608'
-   sysctl -w net.ipv4.tcp_wmem='4096 65536 8388608'
-   sysctl -w net.ipv4.tcp_mem='8388608 8388608 8388608'
-   sysctl -w net.ipv4.route.flush=1
-== Prompt ($PS1) ==
-The prompt is set to <code>user@cortex?:pwd$</code> in <code>/etc/bash.bashrc</code>. With those settings, if you log in to Cortex1, the prompt will be <code>user@cortex1:~$</code>.
-We chose to do so because sometimes it's convenient to have the number of the Cortex machine you're working on embedded in the prompt.
-By default, though, this configuration is overridden in the users' <code>~/.bashrc</code> file, and the prompt is set to <code>user@source</code> regardless of the Cortex machine you log in to.<br>
-If you want to inhibit this behaviour in <code>~/.bashrc</code> and thus have a prompt like <code>user@cortex?:pwd</code>, just comment these lines in your <code>~/.bashrc</code>:
-   # set a fancy prompt (non-color, unless we know we "want" color)
-   case "$TERM" in
-   xterm-color)
-       PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
-       ;;
-   *)
-       PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
-       ;;
-   esac
-However, for users created after 2009-05-07, the prompt is already set to <code>user@cortex?:pwd$</code> by default.
-== Mounting network folders  ==
-The folder "database" on BlackHole is mounted automatically to /media/blackhole. See /etc/fstab for details.
 [[Category:Vislab]]

Cortex: Difference between revisions

Latest revision as of 13:59, 26 January 2018

Specifications

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Specifications

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