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Combined display of all available logs of HPCWIKI. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 12:09, 14 November 2024 Admin talk contribs created page Efibootmgr (Created page with " '''efibootmgr'''<ref>https://github.com/rhboot/efibootmgr</ref> is a command line tool to managing UEFI boot menu. == Usage == Assumming that you have installed Linux in UEFI mode. === Install efibootmgr === You can install the '''efibootmgr''' command line utility with the following commands on Debian/Ubuntu/Linux Mint sudo apt install efibootmgr === Displaying Current Settings === Simply run the following command. In some Linux distributions like Debian, you ne...") Tag: Visual edit
• 08:36, 14 November 2024 Admin talk contribs created page Fwupd (Created page with "[https://fwupd.org/ fwupd] ([https://aur.archlinux.org/packages/fwupd-git/ fwupd-git])is a simple daemon to allow session software to update device firmware on your local machine. It's designed for desktops, but also usable on phones and headless servers. == Usage<ref>https://wiki.archlinux.org/title/Fwupd</ref> == To display all devices detected by ''fwupd'': $ fwupdmgr get-devices '''Note:''' Listed devices may not be updatable through ''fwupd'' (''e.g.'' Intel integ...") Tag: Visual edit
• 07:36, 1 November 2024 Admin talk contribs created page Tcpdump tips and tricks (Created page with " == Trace multicast package == <syntaxhighlight lang="bash"> $Trace multicast package example $sudo tcpdump -nnXs 0 -i enp1s0f0 udp port 5007 and dst 224.1.1.1 </syntaxhighlight> == References == <references />") Tag: Visual edit
• 10:47, 31 October 2024 Admin talk contribs created page Cipher suite (Created page with "The Cipher Suite ID values are used as a way to identify different Cipher Suites in configuration parameters and IPMI commands. {| class="wikitable" |+Cipher suite ID numbers<ref>https://support.hpe.com/hpesc/public/docDisplay?docId=sd00002092en_us&docLocale=en_US&page=GUID-D7147C7F-2016-0901-06CE-00000000054A.html</ref> !ID !Characteristics !Cipher Suite !Authentication Algorithm !Integrity Algorithm(s) !Confidentiality Algorithm(s) |- | colspan="1" rowspan="1" |0 | col...") Tag: Visual edit
• 10:33, 31 October 2024 Admin talk contribs created page IPMI (Created page with "== What is IPMI == '''Intelligent Platform Management Interface''' ('''IPMI''') is a set of computer interface specifications for an autonomous computer subsystem that provides management and monitoring capabilities '''independently of the host system's CPU, firmware (BIOS or UEFI) and operating system'''.<ref>https://en.wikipedia.org/wiki/Intelligent_Platform_Management_Interface</ref> A BMC (baseboard management controller) is a core building block of IPMI sub-system...") Tag: Visual edit
• 13:17, 5 September 2024 Admin talk contribs created page ARP (Created page with "== ARP == ARP stands for '''Address Resolution Protocol that use EtherType 0x0806.''' ARP is broadcasted packet in the network: "Hey, who is 10.230.20.1, tell me your MAC address!", and that system replies: "I'm 10.230.20.1, my MAC address is XX:XX:XX:XX:XX:XX". Then all systems who seen this reply record in their dynamic '''ARP table''' that 10.230.20.1 is. depending on OS, the record in the table expires and resolution process repeats. Usually this is 300 seconds. =...") Tag: Visual edit
• 12:52, 5 September 2024 Admin talk contribs moved page Internet protocols to Network protocols (change title)
• 10:53, 4 September 2024 Admin talk contribs created page PCIe 5.0 (Created page with "== PCIe v5.0 == In May 2019, the PCIe 5.0 specification was officially released by the PCI-SIG. The transfer speed became twice that of PCIe 4.0 at 32.0 GT/s. PCIe 5.0 enables new transmission speed of storage via connectors such as Gen-Z, MCIO and SAS are becoming increasingly important {| class="wikitable" |+ !Connector type !Description !transmission bandwidth ranges !PCIe 6.0 compatibility ! |- |'''Gen-Z''' |The mechanism design refers to the specification of...") Tag: Visual edit
• 10:50, 4 September 2024 Admin talk contribs uploaded File:SFF-TA-1016 Specification.png
• 10:50, 4 September 2024 Admin talk contribs created page File:SFF-TA-1016 Specification.png
• 10:42, 4 September 2024 Admin talk contribs created page File:SFF-TA-1002 Specification.png
• 10:42, 4 September 2024 Admin talk contribs uploaded File:SFF-TA-1002 Specification.png
• 11:17, 27 August 2024 Admin talk contribs created page Efi shell tips and tricks (Created page with " == EFI shell commands == {| class="wikitable" |+ !Type !Command !Description !Notes |- |Boot Commands — EFI Shell. Commands related to nPartition booting |autoboot |Set/view autoboot timeout variable | |- | |bcfg |Display/modify the driver/boot configuration | |- | |boottest |Set/view BootTest bits | |- | |dbprofile |Display/modify direct boot profiles for use by lanboot | |- | |lanboot |Boot over the LAN | |- | |reconfigreset |Reset the system (nPartition) for recon...") Tag: Visual edit
• 12:08, 23 August 2024 Admin talk contribs created page SR-IOV (Created page with "== Single Root IO Virtualization (SR-IOV) == SR-IOV ('''Single Root - I/O Virtualization''') is a technology that allows a single PCIe device to appear as multiple separate physical devices to the host system. Disabling SR-IOV can affect how the GPU is exposed to the operating system and drivers<ref>https://www.ibm.com/docs/en/power8?topic=POWER8/p8ecu/p8ecu_vios_concepts_network_sriov.htm</ref> SR-IOV is commonly used in conjunction with an SR-IOV enabled hypervisor to...") Tag: Visual edit
• 14:05, 5 August 2024 Admin talk contribs changed group membership for Seokforhpc from (none) to customers
• 14:01, 5 August 2024 User account Seokforhpc talk contribs was created by Admin talk contribs
• 12:55, 16 July 2024 Admin talk contribs created page Data backup and disaster planning (Created page with "Linux systems are widely used in servers and critical infrastructure, ensuring rapid recovery from failures is paramount. This page dives deep into the essentials of Linux system recovery, offering insights into effective backup strategies and disaster planning. == Types of Failures Affecting Linux Systems == * '''Hardware Failures''': These include issues like hard drive crashes, memory corruption, or power supply failures. * '''Software Issues''': Software failures m...") Tag: Visual edit
• 13:15, 14 July 2024 Admin talk contribs created page Samba tips and tricks (Created page with " == Wired file name on Window file explorer while correct file name on Linux == Window file explorer shows wired file name, <code>G2X4IA~5 O2T3KH~K SYJ2IT~R</code> It's a file name mangling problem due to Samba is converting filenames down to old style DOS 8.3 filenames. On server side, edit <code>/etc/samba/smb.conf</code> and add <code>mangled names=no</code> to the <code>[global]</code> section and restart the smb service.<ref>Reference: <nowiki>http://oreilly.co...") Tag: Visual edit
• 14:57, 18 June 2024 Admin talk contribs created page Training and Inference (Created page with "In AI we must first draw a distinction between training an AI model and using the trained model for inference on a real world data stream. Training stage requires magnitude amount of compute intensive while inference stage requires minimum reasonable amount of compute resources to provide service response time effectivly. == Training stage - system requirements by AI model == The three major categories of AI architectures and the challenges * Convolutional Neural Ne...") Tag: Visual edit
• 13:48, 18 June 2024 Admin talk contribs created page Transformer model (Created page with "== What is transformer model ? == A transformer model is a type of deep learning model that was introduced in 2017 paper called "Attention is All You Need" by Ashish Vaswani, a team at Google Brain, and a group from the University of Toronto. and now now used in applications such as training LLMs. <ref>https://www.ibm.com/topics/transformer-model</ref> Transformer models can translate text and speech in near-real-time. OpenAI’s popular ChatGPT text generation tool ma...") Tag: Visual edit
• 13:25, 18 June 2024 Admin talk contribs created page Transformer Engine (Created page with "== What is (TE) Transfermer Engine == Most deep learning frameworks train with FP32 by default. This is not essential, however, to achieve full accuracy for many deep learning models. Using mixed-precision training, which combines <u>single-precision (FP32)</u> with <u>lower precision (FP16)</u> format when training a model, results in significant speedups with minimal differences in accuracy as compared to FP32 training. With Hopper and Ada GPU architecture <u>FP8 preci...") Tag: Visual edit
• 13:08, 13 June 2024 Admin talk contribs deleted page U.2-U.3 (content was: " According to [https://www.opencompute.org/files/OCP-Trimode-Presentation-Final.pdf OCP-Trimode-Presentation], SAS and NVMe forecasted to increase over the coming years and SATA to decrease. == U.2 == == U.3 == U.3 is a ‘Tri-mode’ standard, building on the U.2 spec and using the same SFF-8639 connector. It combines SAS, SATA, and NVMe support into a single controller. So...", and the only contributor was "Admin" (talk))
• 13:08, 13 June 2024 Admin talk contribs created page U.2-U.3 (Created page with " According to [https://www.opencompute.org/files/OCP-Trimode-Presentation-Final.pdf OCP-Trimode-Presentation], SAS and NVMe forecasted to increase over the coming years and SATA to decrease. == U.2 == == U.3 == U.3 is a ‘Tri-mode’ standard, building on the U.2 spec and using the same SFF-8639 connector. It combines SAS, SATA, and NVMe support into a single controller. So, U.3 only requires 1 backplane, 1 mid-plane, and 1 controller, supporting all these drives in...") Tag: Visual edit
• 13:01, 13 June 2024 Admin talk contribs created page File:Tri-mode storage.png
• 13:01, 13 June 2024 Admin talk contribs uploaded File:Tri-mode storage.png
• 13:00, 13 June 2024 Admin talk contribs created page File:Storage Today & Past.png
• 13:00, 13 June 2024 Admin talk contribs uploaded File:Storage Today & Past.png
• 12:58, 13 June 2024 Admin talk contribs created page Template:Tri-mode (Created page with " == Tri-Mode == thumb|408x408px|Tri-mode<ref>https://medium.com/@bilgin.ozturk/what-is-tri-mode-controller-why-is-it-so-important-db97129cc0f5</ref> Tri-Mode controllers make this SATA/SAS/NVME interface mess simple by using a single controller, expander, and disk backplane. Tri-mode controllers alone are not enough, here the disc backplanes also come into play. For the perfect Tri-Mode operation, system needs to have • One Backplane • One c...") Tag: Visual edit
• 12:49, 13 June 2024 Admin talk contribs uploaded File:Tri-mode.png
• 12:49, 13 June 2024 Admin talk contribs created page File:Tri-mode.png
• 12:44, 13 June 2024 Admin talk contribs created page Serial ATA (Created page with " == Protocoles and kernel param == {| class="wikitable" |+ !Name !Description |- |Native Command Queuing (NCQ) |an extension of the Serial ATA protocol allowing hard disk drives to internally optimize the order in which received read and write commands are executed. this param looks highly relative the discussion on [https://forum.armbian.com/topic/15937-sata-issue-drive-resets-atax00-failed-command-read-fpdma-queued/ SATA issue, drive resets: ataX.00: failed command: R...") Tag: Visual edit
• 11:33, 3 June 2024 Admin talk contribs created page Ultra Accelerator Link (UALink) (Created page with "== Ultra Accelerator Link (UALink) == AMD, Broadcom, Google, Intel, Meta, and Microsoft all develop their own AI accelerators (well, Broadcom designs them for Google), Cisco produces networking chips for AI, while HPE builds servers. These companies are interested in standardizing as much infrastructure for their chips as possible, which is why they are teaming up to develop a new industry standard dedicated to advancing high-speed and low-latency communication for scale...") Tag: Visual edit
• 11:29, 3 June 2024 Admin talk contribs created page File:UALink pod.png
• 11:29, 3 June 2024 Admin talk contribs uploaded File:UALink pod.png
• 09:50, 31 May 2024 Admin talk contribs uploaded File:SDN timeline.png
• 09:50, 31 May 2024 Admin talk contribs created page File:SDN timeline.png
• 09:29, 31 May 2024 Admin talk contribs uploaded File:Type of SDN product .png
• 09:29, 31 May 2024 Admin talk contribs created page File:Type of SDN product .png
• 09:27, 31 May 2024 Admin talk contribs uploaded File:Type of SDN solutions.png
• 09:27, 31 May 2024 Admin talk contribs created page File:Type of SDN solutions.png
• 09:00, 31 May 2024 Admin talk contribs created page SDN (Created page with "== Software-defined networking (SDN) == SDN architecture) defines how a networking and computing system can be built using a combination of open software-based technologies and commodity networking hardware to supports dynamic programmable network configuration. SDN uses the controller for network device management, network service orchestration, and service traffic scheduling, which features low costs, centralized management, and flexible scheduling. The advantages...") Tag: Visual edit
• 08:46, 31 May 2024 Admin talk contribs uploaded File:Comparison between the traditional network architecture and SDN architecture.png
• 08:46, 31 May 2024 Admin talk contribs created page File:Comparison between the traditional network architecture and SDN architecture.png
• 12:06, 30 May 2024 Admin talk contribs moved page JS tims and tricks to JS tips and tricks
• 12:04, 30 May 2024 Admin talk contribs created page JS tims and tricks (Created page with " == Display JavaScript datetime in 12 hour AM/PM format<ref>https://stackoverflow.com/questions/8888491/how-do-you-display-javascript-datetime-in-12-hour-am-pm-format</ref> == <syntaxhighlight lang="javascript"> toLocaleTimeString() may behave differently based on region / location var time = new Date(); console.log( time.toLocaleString('en-US', { hour: 'numeric', minute: 'numeric', hour12: true }) ); </syntaxhighlight><code>toLocaleTimeString() may behave differently...") Tag: Visual edit
• 11:09, 30 May 2024 Admin talk contribs created page Timezone (Created page with " == Timezone set on Linux == Timezone tells your system where you are in the world depending on your exact location on this planet with GMT-/+<nowiki><time> format.</nowiki> On most Linux, <code>/etc/timezone</code> is a text-based representation of what timezone you are in. <code>/etc/localtime</code> is a binary representation of the exact rules for calculating the time relative to UNIX time by a symbolic link from <code>/etc/localtime</code> to a file in the <code...") Tag: Visual edit
• 10:22, 30 May 2024 Admin talk contribs created page Chrome remote debugging (Created page with "== Chrome remote debugging == To develop Webapp on target such as mobile or smart rack system solution RD/RIM by HPCMATE, we open need to access remote running Chrome browser from development host system remotely. cause developers are able to debug remotely running webapp instance on the target system through the Chrome remote debugging environment. == Setup remote debugging environment == {| class="wikitable" |+ !Where !What !Description |- | rowspan="2" |On target sy...") Tag: Visual edit
• 09:58, 28 May 2024 Admin talk contribs created page Network tips and tricks (Created page with "== ModuleNotFoundError: No module named 'netifaces' == <syntaxhighlight lang="bash"> #if you have pip installed pip install netifaces #on Ubuntu sudo apt install python3-netifaces </syntaxhighlight> == References == <references />") Tag: Visual edit
• 09:54, 28 May 2024 Admin talk contribs moved page Kernel log tips and trick to Kernel log tips and tricks
• 14:34, 25 May 2024 Admin talk contribs created page X11 tips and tricks (Created page with "== Get current display name == #see the capability of display :0 xrandr --current -display  :0 == Get input device list and properties == get stable video output names xrandr -q | grep connected get input devices $ DISPLAY=:0 xinput list $ DISPLAY=:0 xinput list-props 8 == References == <references />") Tag: Visual edit