'Linux' 카테고리의 다른 글
bash $$ 변수, 배열, 반복 (0) | 2020.12.04 |
---|---|
bash 배열 (0) | 2020.12.04 |
linux 스토리지 정보 (0) | 2020.10.14 |
linux page cache (0) | 2020.01.13 |
dmesg 시간 환산하기 (0) | 2020.01.07 |
bash $$ 변수, 배열, 반복 (0) | 2020.12.04 |
---|---|
bash 배열 (0) | 2020.12.04 |
linux 스토리지 정보 (0) | 2020.10.14 |
linux page cache (0) | 2020.01.13 |
dmesg 시간 환산하기 (0) | 2020.01.07 |
byte[]를 string으로 바꾸어주는 함수들이 여러개가 있는데 자주 보이는 건 아래의 두개가 아닐까 생각된다.
하지만 둘 다 위험한 함수(?) 란 건 변하지 않는다.. ㅠㅠ
System.Text.Encoding.UTF8.GetString()
[링크 : https://docs.microsoft.com/ko-kr/dotnet/api/system.text.encoding.utf8?view=net-5.0]
System.Text.Encoding.ASCII.GetString()
ASCIIEncoding 는 오류 검색을 제공 하지 않습니다. 16 진수 0x7F 보다 큰 바이트는 유니코드 물음표 ("?")로 디코딩됩니다. |
[링크 : https://docs.microsoft.com/ko-kr/dotnet/api/system.text.asciiencoding.getstring?view=net-5.0]
그러니까 char[]/byte[]를 함수들이 string으로 받는다고 변환해서 보내주면 개판을 친다는 의미
하다하다 안되서 혹시나 이상하게 보내오나 wireshark로 패킷을 보니 정상 -_-
아래 코드에 의해 byte[]를 string으로 변환하고 console 창으로 출력한 결과
ff d8 ff e0 00 10 4a 46 49 46 으로 시작하는 JPEG 헤더가
3f 3f 3f 3f 00 10 4a 46 49 46 으로 바뀌어 버렸다.
responseData = System.Text.Encoding.ASCII.GetString(data, 0, bytes);
Console.WriteLine("Received: {0}", responseData);
그러니까.. 바이너리 데이터는 꾿꾿이 byte[]로 주고 받아야 할 듯.. ㅠㅠ
c# richtextbox 글씨 색상 입히기 (0) | 2021.05.24 |
---|---|
c# named argument (0) | 2021.01.06 |
c# vertical tab (0) | 2020.11.26 |
c# rest API client (0) | 2020.11.25 |
c# telnet, ssh client (0) | 2020.11.24 |
공장에서 잘못보내서 다시 보내주고 반송 처리 하겠다고
흐음.. 미안하다는 말이 있었나 없었나?
아무튼 예상했던것 보다 하루 늦게 도착했고
이상하게 도착하고
여전히 전화는 드럽게 안 받아서 본사전화해서 재촉해야 좀 오고
이상한 곳이야..
4k60p 안되는게 팩토리 모드 문제인가 싶어서 리모컨 없이 쓰려니 좀 힘들기도 하고
그냥 속 터져서 거금 만원에 배송비 들여서 일단 구매진행
모넥스, 카레나, 클라인즈, 아인츠, 시네eye, 모지, 제파, 디존아이
DLT 한곳에서 제조하고 8곳 업체로 동일하게 판매하는 듯하다.
[링크 : http://itempage3.auction.co.kr/DetailView.aspx?ItemNo=B645357255&frm3=V2]
55인치 vs 43인치 (0) | 2020.12.12 |
---|---|
UHD 색상도 이상하고 화면도 선명하지 않아서.. (0) | 2020.12.07 |
무선 디스플레이 사용해봄 (0) | 2020.12.02 |
UHD HDMI 케이블 문제? 아니면.. 리모컨 없는 죄? (0) | 2020.12.01 |
43인치 UHD 구매 (0) | 2020.11.30 |
warewulf 답게 ww로 프로그램 이름이 시작한다.
# ww wwbootstrap wwinit wwmkchroot wwsh wwvnfs wwconfig wwlivesync wwnodescan wwuseradd |
초기화 명령으로 database랑 ssh_keys는 했는데 의외로 초기화 하는 항목이 많다?
# wwinit --help /usr/bin/wwinit: illegal option -- - /usr/bin/wwinit [options] [initialization(s)] OPTIONS: -d Debug output -v Verbose output -h Usage summary INITIALIZATIONS: * ALL * AUTH * BOOTSTRAP * DATABASE * DATASTORE * MASTER * NFS * PROVISION * TESTING * TIME * VNFS * authfiles * bootstrap * chrony * database * dhcp * domain * hostfile * network * nfsd * ntp * ssh_keys * tftp * vnfs * wwsh EXAMPLES: # wwinit ALL # wwinit TEST database |
자동으로 새로운 컴퓨터 노드를 등록해주는 유틸리티
wwsh node를 통해서도 추가가 가능하다.
# wwnodescan
USAGE: /usr/bin/wwnodescan [options] nodes....
SUMMARY:
Scan for new systems making DHCP requests.
GENERAL OPTIONS:
-h, --help Show the help/utilization summary
-d, --debug Display debugging information
-v, --verbose Be more verbose in output
-f, --file <file> Create Warewulf script instead of auto-import
-l, --listen <iface> Interface to listen on (tcpdump -D for list)
-c, --tcpdump <cmd> Specify the full path to the tcpdump command
-T, --tshark <cmd> Specify the full path to the tshark command (Only IB Mode)
-x, --max [<cnt>] Exit after <cnt> new nodes (0 for auto)
MODES:
-t, --test Test mode; do not modify data store
-r, --replace Replace existing nodes (by name)
-a, --autoconfig Assign HW addresses to unassigned nodes
-I, --infiniband Use tshark to look for Client Identifier, compatible with Mellanox FlexBoot.
SETTINGS:
-n, --netdev <dev> Network device for the new node(s)
-i, --ipaddr <addr> IP address for the new node(s)
-m, --netmask <mask> Netmask for the new node(s)
-V, --vnfs <vnfs> VNFS for the node(s)
-b, --bootstrap <name> Bootstrap for the node(s)
-g, --groups <groups> Groups for the node(s)
NODES:
You can scan for any number of nodes; this program will exit after all
specified nodes have been found. The IP address provided will be
incremented for each node found, and nodes will be added in the order
given on the command line.
DEFAULTS:
As with all object types, you can create a template node object called
DEFAULT whose attributes will be used as the default values for all
new nodes. You can override some of these defaults using the options
shown above.
EXAMPLES:
# wwnodescan --ipaddr 10.0.1.10 --netmask 255.255.0.0 --vnfs=sl6.vnfs
--bootstrap=`uname -r` n0000 n0001
# wwsh node new DEFAULT --groups=grp1,test
# wwsh provision node DEFAULT --vnfs=sl6.vnfs --bootstrap=`uname -r`
# wwnodescan --ipaddr 10.0.1.100 --netmask 255.255.0.0 n00[02-19]
VNFS 이미지를 만들때 시작 지점과 배포판을 지정할때 사용
# wwmkchroot ERROR: Missing VNFS template name /usr/bin/wwmkchroot [options] TEMPLATE_NAME PATH OPTIONS: -d Debug output -g Disable install GPG checks -v Verbose output -h Show usage TEMPLATE_NAME (select one of the following): * centos-6 A clone of Red Hat Enterprise Linux 6 * centos-7 A clone of Red Hat Enterprise Linux 7 * centos-8 Red Hat Enterprise Linux 8 * debian7-32 A base 32 bit Debian wheezy chroot * debian7-64 A base 64 bit Debian wheezy chroot * debian-8 A base 64 bit Debian jessie chroot * golden-system Build a local chroot from a golden system * opensuse-15.1 OpenSUSE LEAP 15.1 * opensuse-15.2 OpenSUSE LEAP 15.2 * opensuse-42.3 OpenSUSE LEAP 42.3 * opensuse-tumbleweed OpenSUSE Tumbleweed Rolling Release * sl-7 Scientific Linux 7 * sles-12 SUSE Linux Enterprise Server 12 * sles-15 SUSE Linux Enterprise Server 15 Update 1 * ubuntu-16.04 A base 64 bit Ubuntu xenial chroot * ubuntu-18.04 A base 64-bit Ubuntu cosmic chroot PATH: This is the location where the VNFS will be created EXAMPLES: # wwmkchroot rhel-generic /var/chroots/rhel # wwmkchroot debian8-64 /var/chroots/deb8 |
wwmkvnfs 로 만든 디렉토리를 VNFS 이미지로 생성하는 유틸리티
# wwvnfs
_FORTIFY_SOURCE requires compiling with optimization (-O) at /usr/lib64/perl5/features.ph line 207.
USAGE: /usr/bin/wwvnfs [options] (name)
OPTIONS:
-c, --chroot Path to the chroot to use for this VNFS image
-r, --root Alias for --chroot
-h, --help Usage and help summary
-o, --output Output the binary VNFS to a file instead of importing it
directly into Warewulf
-e, --exclude Exclude a file or directory from the VNFS image
--excludefile Path to a file that contains a list of files and directories to
exclude from the VNFS image
--hybridize Hybridize a list of files or directories from the VNFS image
(requires --hybridpath to be set, or files are just excluded)
--hybridizefile Path to a file that contains a list of files and directories to
be hybridized from the VNFS image
--hybridpath Path to use within the VNFS where the links will be pointed to in
the final image (this needs to be added to the VNFS fstab!)
NOTES:
When wwvnfs is run for the first time on a VNFS, it will attempt to create a
configuration file in the default warewulf config dir (/etc/warewulf/vnfs/) or in
the users ~/.warewulf/vnfs directory. Once the configuration file has been written
and updated, you can simply run 'wwvnfs [vnfs_name]' to rebuild the image. You can
temporarily override any of these options via command line arguments.
EXAMPLES:
# wwvnfs --chroot=/var/chroots/rhel-6
# wwvnfs custom_name --chroot=/var/chroots/rhel-6 --hybridpath=/hybrid/vnfs_name
# wwvnfs --chroot=/var/chroots/rhel-6 --output=rhel-6.vnfs
# wwvnfs custom_name
openHPC 문서 상에는 없는 녀석들. 정체가 머냐?
# wwconfig USAGE: /usr/bin/wwconfig [options] [paramaters] Options: -h, --help Show this help summary -a, --all Print all evnironment variables -s, --sh Print output in Bourne shell format -e, --exp Also print out export lines. For use with Bourne shell format. -c, --csh Print output in C shell format Paramaters: PROGNAME Program name VERSION Program version GITVERSION Git repository commit PREFIX The compile-time prefix DATAROOTDIR The compile-time data root directory DATADIR The compile-time data directory LIBDIR The compile-time lib directory LIBEXECDIR The compile-time libexec directory PERLMODDIR The compile-time Perl module directory STATEDIR The compile-time local state directory SYSCONFDIR The compile-time system configuration directory |
# wwlivesync USAGE: /usr/bin/wwlivesync (options) [targets] SUMMARY: The live sync command will spawn rsync commands to update the running node operating system (VNFS) live. This command should only be used for minor VNFS updates, as large updates including library load could potentially break binary compatibility. OPTIONS: -l, --lookup Identify nodes by specified property (default: "name") -f, --files Pass a list of files to sync instead of the entire VNFS --show Just print what it would do instead of actually do it --logdir Directory of per-node logs (/var/log/wwlivesync) --verbose Increase verbosity level --quiet Decrease verbosity level --debug Print debugging messages -h, --help Display this usage summary TARGETS: The target(s) specify which node(s) will be affected by the chosen action(s). By default, node(s) will be identified by their name(s). Use the --lookup option to specify another property (e.g., "hwaddr" or "groups"). All targets can be bracket expanded as follows: n00[0-99] All nodes from n0000 through n0099 (inclusive) n00[00,10-99] n0000 and all nodes from n0010 through n0099 EXAMPLES: # wwlivesync n00[00-19] |
# wwuseradd
Adding user to this master
Usage: useradd [options] LOGIN
useradd -D
useradd -D [options]
Options:
-b, --base-dir BASE_DIR base directory for the home directory of the
new account
-c, --comment COMMENT GECOS field of the new account
-d, --home-dir HOME_DIR home directory of the new account
-D, --defaults print or change default useradd configuration
-e, --expiredate EXPIRE_DATE expiration date of the new account
-f, --inactive INACTIVE password inactivity period of the new account
-g, --gid GROUP name or ID of the primary group of the new
account
-G, --groups GROUPS list of supplementary groups of the new
account
-h, --help display this help message and exit
-k, --skel SKEL_DIR use this alternative skeleton directory
-K, --key KEY=VALUE override /etc/login.defs defaults
-l, --no-log-init do not add the user to the lastlog and
faillog databases
-m, --create-home create the user's home directory
-M, --no-create-home do not create the user's home directory
-N, --no-user-group do not create a group with the same name as
the user
-o, --non-unique allow to create users with duplicate
(non-unique) UID
-p, --password PASSWORD encrypted password of the new account
-r, --system create a system account
-R, --root CHROOT_DIR directory to chroot into
-P, --prefix PREFIX_DIR prefix directory where are located the /etc/* files
-s, --shell SHELL login shell of the new account
-u, --uid UID user ID of the new account
-U, --user-group create a group with the same name as the user
-Z, --selinux-user SEUSER use a specific SEUSER for the SELinux user mapping
openHPC LBNL NHC (0) | 2020.12.07 |
---|---|
openHPC 설치 part2? (0) | 2020.12.04 |
wwsh (warewulf shell) (0) | 2020.12.02 |
openHPC 설치 part 1? (2) | 2020.12.02 |
ipmi simulator (0) | 2020.12.02 |
# wwsh --help
wwsh [wwsh options] [command] [object] [command options]
------------------------------------------------------------------------------
WWSH OPTIONS:
--nodhcp -- Do not update dhcpd.conf file.
-d|--debug -- Enable Debug Output
--help -- Print this help
-v|--verbose -- Enable Verbose Output
-q|--quiet -- Enable Quiet Mode
-y|--yes|--noask -- Assume 'Yes' to all questions
WWSH COMMANDS:
help -- Print command (module) help
# wwsh help
Warewulf command line shell interface
Welcome to the Warewulf shell interface. This application allows you
to interact with the Warewulf backend database and modules via a
single interface.
bootstrap Manage your bootstrap images
dhcp Manage DHCP service and configuration
events Control how events are handled
exit Exit/leave the Warewulf shell
file Manage files within the Warewulf data store
ipmi Node IPMI configuration
node Node manipulation commands
object Generically manipulate all Warewulf data store entries
output Set the output verbosity level
provision Node provision manipulation commands
pxe Manage PXE configuration
quit Exit/leave the Warewulf shell
ssh Spawn parallel ssh connections to nodes.
vnfs Manage your VNFS images
# wwsh help file
USAGE:
file <command> [options] [targets]
SUMMARY:
The file command is used for manipulating file objects. It allows you to
import, export, create, and modify files within the Warewulf data store.
File objects may be used to supply files to nodes at provision time,
dynamically create files or scripts based on Warewulf data and more.
COMMANDS:
import Import a file into a file object
export Export file object(s)
edit Edit the file in the data store directly
new Create a new file in the data store
set Set file attributes/metadata
show Show the contents of a file
list List a summary of imported file(s)
print Print all file attributes
(re)sync Sync the data of a file object with its source(s)
delete Remove a node configuration from the data store
help Show usage information
OPTIONS:
-l, --lookup Identify files by specified property (default: "name")
-p, --program What external program should be used (edit/show)
-D, --path Set destination (i.e., output) path for this file
-o, --origin Set origin (i.e., input) path for this file
-m, --mode Set permission attribute for this file
-u, --uid Set the UID for this file
-g, --gid Set the GID for this file
-n, --name Set the reference name for this file (not path!)
--interpreter Set the interpreter name to parse this file
--overwrite Overwrite the metadata in the file object on sync() to match the file at the origin path
NOTE: Use "UNDEF" to erase the current contents of a given field.
EXAMPLES:
Warewulf> file import /path/to/file/to/import --name=hosts-file
Warewulf> file import /path/to/file/to/import/with/given-name
Warewulf> file edit given-name
Warewulf> file set given-name --origin=UNDEF --mode=0700
Warewulf> file set hosts-file --path=/etc/hosts --mode=0644 --uid=0
Warewulf> file list
Warewulf> file delete name123 given-name
# wwsh help ssh
USAGE:
ssh [nodes/targets] [command]
SUMMARY:
Run ssh connections to node(s) in parallel by either node names, group
or any other known lookup.
TARGETS:
The target(s) specify which node(s) will be affected by the chosen
action(s). By default, node(s) will be identified by their name(s).
Use the --lookup option to specify another property (e.g., "hwaddr"
or "groups").
All targets can be bracket expanded as follows:
n00[0-99] All nodes from n0000 through n0099 (inclusive)
n00[00,10-99] n0000 and all nodes from n0010 through n0099
OPTIONS:
-l, --lookup Identify nodes by specified property (default: "name")
-a, --allnodes Send command to all configured nodes
EXAMPLES:
Warewulf> ssh n00[00-49] hostname
Warewulf> ssh -l groups compute,interactive hostname
[root@localhost warewulf]# wwsh help node
USAGE:
node <command> [options] [targets]
SUMMARY:
The node command is used for viewing and manipulating node objects.
COMMANDS:
new Create a new node configuration
set Modify an existing node configuration
list List a summary of nodes
print Print the node configuration
delete Remove a node configuration from the data store
clone Clone a node configuration to another node
help Show usage information
TARGETS:
The target(s) specify which node(s) will be affected by the chosen
action(s). By default, node(s) will be identified by their name(s).
Use the --lookup option to specify another property (e.g., "hwaddr"
or "groups").
All targets can be bracket expanded as follows:
n00[0-99] All nodes from n0000 through n0099 (inclusive)
n00[00,10-99] n0000 and all nodes from n0010 through n0099
OPTIONS:
-l, --lookup Identify nodes by specified property (default: "name")
-1 With list command, output node name only
-g, --groups Specify all groups to which this node belongs
--groupadd Add node to specified group(s)
--groupdel Remove node from specified group(s)
-D, --netdev Specify network device to add or modify (defaults: eth0)
--netdel Remove specified netdev from node
--netrename Rename a given network interface
-I, --ipaddr Set IP address of given netdev
-M, --netmask Set subnet mask of given netdev
-N, --network Set network address of netdev
-G, --gateway Set gateway of given netdev
-H, --hwaddr Set hardware/MAC address
-b, --bonddevs Set bonding slave devices
-B, --bondmode Set bonding mode
-f, --fqdn Set FQDN of given netdev
-m, --mtu Set MTU of given netdev
-p, --hwprefix Specify a prefix for hardware/MAC address of a given netdev
-c, --cluster Specify cluster name for this node
--domain Specify domain name for this node
-n, --name Specify new name for this node
-a, --arch Specify architecture for this node (defaults: x86_64)
-e, --enabled Set whether the node is enabled (defaults: True)
EXAMPLES:
Warewulf> node new n0000 --netdev=eth0 --hwaddr=xx:xx:xx:xx:xx:xx
Warewulf> node set n0000 -D eth0 -I 10.0.0.10 -G 10.0.0.1
Warewulf> node set n0000 --netdev=eth0 --netmask=255.255.255.0
Warewulf> node set --groupadd=mygroup,hello,bye --cluster=mycluster n0000
Warewulf> node set --groupdel=bye --set=vnfs=sl6.vnfs
Warewulf> node list xx:xx:xx:xx:xx:xx --lookup=hwaddr
Warewulf> node print --lookup=groups mygroup hello group123
Warewulf> node clone n0000 new0000
Warewulf> node set --enabled=false n0000
Warewulf> node set --arch=x86_64 n0000
openHPC 설치 part2? (0) | 2020.12.04 |
---|---|
warewulf 유틸리티 (0) | 2020.12.02 |
openHPC 설치 part 1? (2) | 2020.12.02 |
ipmi simulator (0) | 2020.12.02 |
IPoIB - IP over InfiniBand , OFED, PSM (0) | 2020.12.02 |
제약어가 많아져서 무지 귀찮네 -_-
1. Centos 8.2 설치
2. 환경설정
[sms]# systemctl disable firewalld
[sms]# systemctl stop firewalld
3. 타임서버 관련 설정
[sms]# yum install chrony
[sms]# systemctl enable chronyd.service
[sms]# echo "server ${ntp_server}" >> /etc/chrony.conf
[sms]# echo "allow all" >> /etc/chrony.conf
[sms]# systemctl restart chronyd
3. 프로비저닝 패키지 설치
[sms]# yum install http://repos.openhpc.community/OpenHPC/2/CentOS_8/x86_64/ohpc-release-2-1.el8.x86_64.rpm
[sms]# yum install dnf-plugins-core
[sms]# yum config-manager --set-enabled PowerTools
[sms]# yum -y install ohpc-base
[sms]# yum -y install ohpc-warewulf
4. 리소스 매니저 설치
[sms]# yum -y install ohpc-slurm-server
[sms]# cp /etc/slurm/slurm.conf.ohpc /etc/slurm/slurm.conf
[sms]# vi /etc/slurm/slurm.conf
ControlMachine=linux0
[sms]# perl -pi -e "s/device = eth1/device = ${sms_eth_internal}/" /etc/warewulf/provision.conf
[sms]# ip link set dev ${sms_eth_internal} up
[sms]# ip address add ${sms_ip}/${internal_netmask} broadcast + dev ${sms_eth_internal}
[sms]# systemctl enable httpd.service
[sms]# systemctl restart httpd
[sms]# systemctl enable dhcpd.service
[sms]# systemctl enable tftp
[sms]# systemctl restart tftp
5. 프로비저닝 이미지 제작(compute node를 위한 slurm client 설치)
[sms]# export CHROOT=/opt/ohpc/admin/images/centos8.2
[sms]# wwmkchroot -v centos-8 $CHROOT
[sms]# dnf -y --installroot $CHROOT install epel-release
[sms]# cp -p /etc/yum.repos.d/OpenHPC*.repo $CHROOT/etc/yum.repos.d
[sms]# yum -y --installroot=$CHROOT install ohpc-base-compute
[sms]# cp -p /etc/resolv.conf $CHROOT/etc/resolv.conf
[sms]# cp /etc/passwd /etc/group $CHROOT/etc
[sms]# yum -y --installroot=$CHROOT install ohpc-slurm-client
[sms]# chroot $CHROOT systemctl enable munge
+
[sms]# chroot $CHROOT systemctl enable slurmd
[sms]# echo SLURMD_OPTIONS="--conf-server ${sms_ip}" > $CHROOT/etc/sysconfig/slurmd
[sms]# yum -y --installroot=$CHROOT install chrony
[sms]# echo "server ${sms_ip}" >> $CHROOT/etc/chrony.conf
[sms]# yum -y --installroot=$CHROOT install kernel-`uname -r`
[sms]# yum -y --installroot=$CHROOT install lmod-ohpc
6. customize system configuration
[sms]# wwinit database
[sms]# wwinit ssh_keys
[sms]# echo "/home *(rw,no_subtree_check,fsid=10,no_root_squash)" >> /etc/exports
[sms]# echo "/opt/ohpc/pub *(ro,no_subtree_check,fsid=11)" >> /etc/exports
[sms]# exportfs -a
[sms]# systemctl restart nfs-server
[sms]# systemctl enable nfs-server
[sms]# echo "${sms_ip}:/home /home nfs nfsvers=3,nodev,nosuid 0 0" >> $CHROOT/etc/fstab
[sms]# echo "${sms_ip}:/opt/ohpc/pub /opt/ohpc/pub nfs nfsvers=3,nodev 0 0" >> $CHROOT/etc/fstab
[sms]# perl -pi -e 's/# End of file/\* soft memlock unlimited\n$&/s' /etc/security/limits.conf
[sms]# perl -pi -e 's/# End of file/\* hard memlock unlimited\n$&/s' /etc/security/limits.conf
[sms]# perl -pi -e 's/# End of file/\* hard memlock unlimited\n$&/s' $CHROOT/etc/security/limits.conf
[sms]# perl -pi -e 's/# End of file/\* soft memlock unlimited\n$&/s' $CHROOT/etc/security/limits.conf
[sms]# echo "account required pam_slurm.so" >> $CHROOT/etc/pam.d/sshd
7. warewulf 설정 (import files)
[sms]# wwsh file import /etc/passwd
[sms]# wwsh file import /etc/group
[sms]# wwsh file import /etc/shadow
[sms]# wwsh file import /etc/munge/munge.key
8. finalizing provisioing configuration
[sms]# wwbootstrap `uname -r`
9. Assemble VNFS(Virtual Node File System) image
[sms]# wwvnfs --chroot $CHROOT
warewulf 유틸리티 (0) | 2020.12.02 |
---|---|
wwsh (warewulf shell) (0) | 2020.12.02 |
ipmi simulator (0) | 2020.12.02 |
IPoIB - IP over InfiniBand , OFED, PSM (0) | 2020.12.02 |
openHPC warewulf + slurm (0) | 2020.12.02 |
openHPC에서 ipmi가 필수인진 모르겠지만
혹시나 모르니 검색중..
[링크 : https://stackoverflow.com/questions/30502528/is-there-any-ipmi-simulator]
wwsh (warewulf shell) (0) | 2020.12.02 |
---|---|
openHPC 설치 part 1? (2) | 2020.12.02 |
IPoIB - IP over InfiniBand , OFED, PSM (0) | 2020.12.02 |
openHPC warewulf + slurm (0) | 2020.12.02 |
warewulf (0) | 2020.11.26 |
virtualbox 헤드리스 기본으로 설정하기 (0) | 2020.12.15 |
---|---|
virtualbox 내부 네트워크 속도가 느리네? (0) | 2020.12.14 |
virtualbox NAT port forward 설정 (0) | 2020.12.02 |
virtualbox NAT 네트워크 설정 (0) | 2020.12.02 |
virtual box headless mode (0) | 2020.11.10 |
openHPC 내용을 보다보니 못보는 용어가 나와서 검색!
[링크 : https://www.kernel.org/doc/html/latest/infiniband/ipoib.html]
[링크 : https://docs.mellanox.com/pages/viewpage.action?pageId=19798180]
Mellanox OFED is a single Virtual Protocol Internconnect (VPI) software stack based on the OpenFabrics (OFED) Linux stack, and operates across all Mellanox network adapter solutions supporting 10, 20, 40 and 56 Gb/s InfiniBand (IB); 10Gb/s and 40Gb/s Ethernet; and 2.5 or 5.0 GT/s PCI Express 2.0 and 8 GT/s PCI Express 3.0 uplinks to servers.
[링크 : https://www.mellanox.com/related-docs/prod_software/Mellanox OFED Linux User Manual 1_5_3-3_0_0.pdf]
OpenFabrics Enterprise Distribution (OFED*)
Performance Scaled Messaging (PSM) which is included in OFED brings a purpose-designed, lightweight, connectionless architecture that was specifically created to optimize HPC communications.
openHPC 설치 part 1? (2) | 2020.12.02 |
---|---|
ipmi simulator (0) | 2020.12.02 |
openHPC warewulf + slurm (0) | 2020.12.02 |
warewulf (0) | 2020.11.26 |
openHPC (0) | 2020.11.25 |
lg gram과 삼성 UHD 디스플레이 조합으로 써보는데
4k 모니터 에다가 쏴도 1080p만 되는 것 같고, 윈도우에서는 해상도 설정이 뜨지 않는다.
그리고 화면 배율이 달라서 노트북에서는 100% 인데
TV로 옮기면 2배 커지고, TV에서 노트북으로 옮기면 커져있다가 줄어드는데 좀 어색하다고 해야하나..
아무튼 되는것만 확인.
데스크탑에서 블루투스 리시버 꽂고 해볼까?
UHD 색상도 이상하고 화면도 선명하지 않아서.. (0) | 2020.12.07 |
---|---|
티비 스탠드 왔는데.. (4) | 2020.12.02 |
UHD HDMI 케이블 문제? 아니면.. 리모컨 없는 죄? (0) | 2020.12.01 |
43인치 UHD 구매 (0) | 2020.11.30 |
뜬금없는 꽃게님.. (2) | 2020.11.23 |