'Programming' 카테고리의 글 목록 (100 Page)

'Programming'에 해당되는 글 1747건

2017.02.06 HTTP GET / POST 차이 (telnet)
2017.02.05 ubuntu mpich cluster
2017.02.04 opempi 패키지
2017.02.03 openmpi with heterogenerous
2017.02.03 openmpi with openmp
2017.01.31 cpp string compare 와 ==
2017.01.27 해싱 salt
2017.01.25 php $_REQUEST
2017.01.23 php global
2017.01.18 html+php login form

S.N.	Method and Description
1	GET The GET method is used to retrieve information from the given server using a given URI. Requests using GET should only retrieve data and should have no other effect on the data.
2	HEAD Same as GET, but transfers the status line and header section only.
3	POST A POST request is used to send data to the server, for example, customer information, file upload, etc. using HTML forms.
4	PUT Replaces all current representations of the target resource with the uploaded content.
5	DELETE Removes all current representations of the target resource given by a URI.
6	CONNECT Establishes a tunnel to the server identified by a given URI.
7	OPTIONS Describes the communication options for the target resource.
8	TRACE Performs a message loop-back test along the path to the target resource.

http digest (0)	2017.03.03
http header (0)	2017.03.02
해싱 salt (0)	2017.01.27
NPAPI / PPAPI - VLC ... (0)	2016.01.14
HTML5 video player 720p/1080p 재생여부 (0)	2016.01.13

ubuntu mpich cluster

음.. 구조를 일단 파악을 해봐야 하나..

odroid 쪽은 mpich2 패키지가 없네.. 버전이 달라서 그런가?

아무튼 mpiexec나 mpirun 나 둘다 똑같이 실행파일이 연결되네

lrwxrwxrwx 1 root root 24 2월 5 12:43 /usr/bin/mpirun -> /etc/alternatives/mpirun*

lrwxrwxrwx 1 root root 25 2월 5 12:43 /usr/bin/mpiexec -> /etc/alternatives/mpiexec*

lrwxrwxrwx 1 root root 21 2월 5 12:43 /etc/alternatives/mpirun -> /usr/bin/mpirun.mpich*

lrwxrwxrwx 1 root root 22 2월 5 12:43 /etc/alternatives/mpiexec -> /usr/bin/mpiexec.mpich*

lrwxrwxrwx 1 root root 13 2월 7 2016 /usr/bin/mpirun.mpich -> mpiexec.hydra*

lrwxrwxrwx 1 root root 13 2월 7 2016 /usr/bin/mpiexec.mpich -> mpiexec.hydra*

$ mpiexec --help

Usage: ./mpiexec [global opts] [local opts for exec1] [exec1] [exec1 args] : [local opts for exec2] [exec2] [exec2 args] : ...

Global options (passed to all executables):

Global environment options:

-genv {name} {value} environment variable name and value

-genvlist {env1,env2,...} environment variable list to pass

-genvnone do not pass any environment variables

-genvall pass all environment variables not managed

by the launcher (default)

Other global options:

-f {name} file containing the host names

호스트 파일은 아래와 같이 넣는데 얘도 winbind 적용 가능하려나?

ub3:4 # this will spawn 4 processes on ub3

ub2:2 # this will spawn 2 processes on ub2

ub1 # this will spawn 1 process on ub1

ub0 # this will spawn 1 process on ub0

[링크 : https://help.ubuntu.com/community/MpichCluster]

[링크 : http://www.brianjp93.com/blog/building-a-beowulf-cluster-ubuntu-1404-server-lts/]

[링크 : https://www.digitalocean.com/.../how-to-create-a-beowulf-cluster-using-ubuntu-12-04-vps-instances]

[링크 : http://techtinkering.com/2009/12/02/setting-up-a-beowulf-cluster-using-open-mpi-on-linux/]

설정방법을 대충보니...

빌드 돌릴 녀석이 host node가 되고, 얘가 nfs로 공유할 디렉토리를 생성해서 work node들이 여기를 연결

빌드에는 ssh를 key적용해서 암호없이도 할 수 있도록 해야 하는 듯..

옛날에 있던 녀석이니.. rlogin이나 telnet으로는 안되려나?

$ mpiexec -info

HYDRA build details:

Version: 3.2

Release Date: Wed Nov 11 22:06:48 CST 2015

CC: gcc -Wl,-Bsymbolic-functions -Wl,-z,relro

CXX: g++ -Wl,-Bsymbolic-functions -Wl,-z,relro

F77: gfortran -Wl,-Bsymbolic-functions -Wl,-z,relro

F90: gfortran -Wl,-Bsymbolic-functions -Wl,-z,relro

Configure options: '--disable-option-checking' '--prefix=/usr' '--build=arm-linux-gnueabihf' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-silent-rules' '--libdir=${prefix}/lib/arm-linux-gnueabihf' '--libexecdir=${prefix}/lib/arm-linux-gnueabihf' '--disable-maintainer-mode' '--disable-dependency-tracking' '--enable-shared' '--enable-fortran=all' '--disable-rpath' '--disable-wrapper-rpath' '--sysconfdir=/etc/mpich' '--libdir=/usr/lib/arm-linux-gnueabihf' '--includedir=/usr/include/mpich' '--docdir=/usr/share/doc/mpich' '--with-hwloc-prefix=system' 'CPPFLAGS= -Wdate-time -D_FORTIFY_SOURCE=2 -I/build/mpich-52KREu/mpich-3.2/src/mpl/include -I/build/mpich-52KREu/mpich-3.2/src/mpl/include -I/build/mpich-52KREu/mpich-3.2/src/openpa/src -I/build/mpich-52KREu/mpich-3.2/src/openpa/src -D_REENTRANT -I/build/mpich-52KREu/mpich-3.2/src/mpi/romio/include' 'CFLAGS= -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -O2' 'CXXFLAGS= -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -O2' 'FFLAGS= -g -O2 -fstack-protector-strong -O2' 'FCFLAGS= -g -O2 -fstack-protector-strong -O2' 'build_alias=arm-linux-gnueabihf' 'MPICHLIB_CFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security' 'MPICHLIB_CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'MPICHLIB_CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security' 'MPICHLIB_FFLAGS=-g -O2 -fstack-protector-strong' 'MPICHLIB_FCFLAGS=-g -O2 -fstack-protector-strong' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro' 'FC=gfortran' 'F77=gfortran' 'MPILIBNAME=mpich' '--cache-file=/dev/null' '--srcdir=.' 'CC=gcc' 'LIBS=-lpthread '

Process Manager: pmi

Launchers available: ssh rsh fork slurm ll lsf sge manual persist

Topology libraries available: hwloc

Resource management kernels available: user slurm ll lsf sge pbs cobalt

Checkpointing libraries available: blcr

Demux engines available: poll select

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Posted by 구차니

opempi 패키지

멀 깔아야 서버가 되려나?

$ sudo apt-cache search openmpi

gromacs-openmpi - Molecular dynamics sim, binaries for OpenMPI parallelization

libblacs-openmpi1 - Basic Linear Algebra Comm. Subprograms - Shared libs. for OpenMPI

libhdf5-openmpi-8 - Hierarchical Data Format 5 (HDF5) - runtime files - OpenMPI version

libhdf5-openmpi-8-dbg - Hierarchical Data Format 5 (HDF5) - OpenMPI Debug package

libhdf5-openmpi-dev - Hierarchical Data Format 5 (HDF5) - development files - OpenMPI version

libmeep-lam4-7 - library for using parallel (OpenMPI) version of meep

libmeep-lam4-dev - development library for using parallel (OpenMPI) version of meep

libmeep-mpi-default-dev - development library for using parallel (OpenMPI) version of meep

libmeep-mpi-default7 - library for using parallel (OpenMPI) version of meep

libmeep-mpich2-7 - library for using parallel (OpenMPI) version of meep

libmeep-mpich2-dev - development library for using parallel (OpenMPI) version of meep

libmeep-openmpi-dev - development library for using parallel (OpenMPI) version of meep

libmeep-openmpi7 - library for using parallel (OpenMPI) version of meep

libopenmpi-dev - high performance message passing library -- header files

libopenmpi1.6 - high performance message passing library -- shared library

libopenmpi1.6-dbg - high performance message passing library -- debug library

libscalapack-openmpi1 - Scalable Linear Algebra Package - Shared libs. for OpenMPI

meep-lam4 - software package for FDTD simulation, parallel (OpenMPI) version

meep-mpi-default - software package for FDTD simulation, parallel (OpenMPI) version

meep-mpich2 - software package for FDTD simulation, parallel (OpenMPI) version

meep-openmpi - software package for FDTD simulation, parallel (OpenMPI) version

mpqc-openmpi - Massively Parallel Quantum Chemistry Program (OpenMPI transitional package)

netpipe-openmpi - Network performance tool using OpenMPI

octave-openmpi-ext - Transitional package for parallel computing in Octave using MPI

openmpi-bin - high performance message passing library -- binaries

openmpi-checkpoint - high performance message passing library -- checkpoint support

openmpi-common - high performance message passing library -- common files

openmpi-doc - high performance message passing library -- man pages

openmpi1.6-common - high performance message passing library -- common files

openmpi1.6-doc - high performance message passing library -- man pages

openmpipython - MPI-enhanced Python interpreter (OpenMPI based version)

yorick-full - full installation of the Yorick interpreter and add-ons

yorick-mpy-openmpi - Message Passing Yorick (OpenMPI build)

$ sudo apt-cache search mpich

gromacs-mpich - Molecular dynamics sim, binaries for MPICH parallelization

libhdf5-mpich-8 - Hierarchical Data Format 5 (HDF5) - runtime files - MPICH2 version

libhdf5-mpich-8-dbg - Hierarchical Data Format 5 (HDF5) - Mpich Debug package

libhdf5-mpich-dev - Hierarchical Data Format 5 (HDF5) - development files - MPICH version

libhdf5-mpich2-dev - Hierarchical Data Format 5 (HDF5) - development files - MPICH version

libmeep-mpi-default-dev - development library for using parallel (OpenMPI) version of meep

libmeep-mpi-default7 - library for using parallel (OpenMPI) version of meep

libmeep-mpich2-7 - library for using parallel (OpenMPI) version of meep

libmeep-mpich2-dev - development library for using parallel (OpenMPI) version of meep

libmpich-dev - Development files for MPICH

libmpich12 - Shared libraries for MPICH

libmpich2-3 - Shared libraries for MPICH2

libmpich2-dev - Transitional dummy package for MPICH development files

libmpl-dev - Development files for mpl part of MPICH

libmpl1 - Shared libraries for mpl part of MPICH

libopa-dev - Development files for opa part of MPICH

libopa1 - Shared libraries for opa part of MPICH

libscalapack-mpi-dev - Scalable Linear Algebra Package - Dev. files for MPICH

meep-mpi-default - software package for FDTD simulation, parallel (OpenMPI) version

meep-mpich2 - software package for FDTD simulation, parallel (OpenMPI) version

mpb-mpi - MIT Photonic-Bands, parallel (mpich) version

mpi-default-bin - Standard MPI runtime programs (metapackage)

mpi-default-dev - Standard MPI development files (metapackage)

mpich - Implementation of the MPI Message Passing Interface standard

mpich-doc - Documentation for MPICH

mpich2 - Transitional dummy package

mpich2-doc - Transitional dummy package for MPICH documentation

mpich2python - MPI-enhanced Python interpreter (MPICH2 based version)

netpipe-mpich2 - Network performance tool using MPICH2 MPI

scalapack-mpi-test - Scalable Linear Algebra Package - Test files for MPICH

scalapack-test-common - Test data for ScaLAPACK testers

yorick-full - full installation of the Yorick interpreter and add-ons

yorick-mpy-mpich2 - Message Passing Yorick (MPICH2 build)

$ sudo apt-cache search mpirun

lam-runtime - LAM runtime environment for executing parallel programs

mpi-default-bin - Standard MPI runtime programs (metapackage)

[링크 : https://likymice.wordpress.com/2015/03/13/install-open-mpi-in-ubuntu-14-04-13-10/]

$ sudo apt-get install libcr-dev mpich2 mpich2-doc

[링크 : https://jetcracker.wordpress.com/2012/03/01/how-to-install-mpi-in-ubuntu/]

mpich와 mpich2는 별 차이가 없네? 그래도 2는 1을 포함하는 듯

$ sudo apt-get install mpich

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following extra packages will be installed:

gfortran gfortran-4.9 hwloc-nox libcr0 libgfortran-4.9-dev libhwloc-plugins

libhwloc5 libmpich-dev libmpich12 libmpl-dev libmpl1 libopa-dev libopa1

ocl-icd-libopencl1

Suggested packages:

gfortran-doc gfortran-4.9-doc libgfortran3-dbg blcr-dkms

libhwloc-contrib-plugins blcr-util mpich-doc opencl-icd

The following NEW packages will be installed:

gfortran gfortran-4.9 hwloc-nox libcr0 libgfortran-4.9-dev libhwloc-plugins

libhwloc5 libmpich-dev libmpich12 libmpl-dev libmpl1 libopa-dev libopa1

mpich ocl-icd-libopencl1

0 upgraded, 15 newly installed, 0 to remove and 3 not upgraded.

Need to get 6,879 kB of archives.

After this operation, 25.5 MB of additional disk space will be used.

Do you want to continue? [Y/n]

$ sudo apt-get install mpich2

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following extra packages will be installed:

gfortran gfortran-4.9 hwloc-nox libcr0 libgfortran-4.9-dev libhwloc-plugins

libhwloc5 libmpich-dev libmpich12 libmpl-dev libmpl1 libopa-dev libopa1

mpich ocl-icd-libopencl1

Suggested packages:

gfortran-doc gfortran-4.9-doc libgfortran3-dbg blcr-dkms

libhwloc-contrib-plugins blcr-util mpich-doc opencl-icd

The following NEW packages will be installed:

gfortran gfortran-4.9 hwloc-nox libcr0 libgfortran-4.9-dev libhwloc-plugins

libhwloc5 libmpich-dev libmpich12 libmpl-dev libmpl1 libopa-dev libopa1

mpich mpich2 ocl-icd-libopencl1

0 upgraded, 16 newly installed, 0 to remove and 3 not upgraded.

Need to get 6,905 kB of archives.

After this operation, 25.6 MB of additional disk space will be used.

Do you want to continue? [Y/n]

그냥 실행하는게 없으니 에러나네?

$ mpirun

[mpiexec@raspberrypi] set_default_values (ui/mpich/utils.c:1528): no executable provided

[mpiexec@raspberrypi] HYD_uii_mpx_get_parameters (ui/mpich/utils.c:1739): setting default values failed

[mpiexec@raspberrypi] main (ui/mpich/mpiexec.c:153): error parsing parameters

대충 소스 받아서 돌려보니 되긴한데.. 다른 서버를 구축해서 하는건 또 나중에 해봐야지..

$ mpicc mpi.c -o hello

$ mpirun -np 2 ./hello

Hello world from process 0 of 2

Hello world from process 1 of 2

-np는 number of processes

$ mpirun --help

Usage: ./mpiexec [global opts] [local opts for exec1] [exec1] [exec1 args] : [local opts for exec2] [exec2] [exec2 args] : ...

Global options (passed to all executables):

Global environment options:

-genv {name} {value} environment variable name and value

-genvlist {env1,env2,...} environment variable list to pass

-genvnone do not pass any environment variables

-genvall pass all environment variables not managed

by the launcher (default)

Other global options:

-f {name} file containing the host names

-hosts {host list} comma separated host list

-wdir {dirname} working directory to use

-configfile {name} config file containing MPMD launch options

Local options (passed to individual executables):

Local environment options:

-env {name} {value} environment variable name and value

-envlist {env1,env2,...} environment variable list to pass

-envnone do not pass any environment variables

-envall pass all environment variables (default)

Other local options:

-n/-np {value} number of processes

{exec_name} {args} executable name and arguments

Hydra specific options (treated as global):

Launch options:

-launcher launcher to use (ssh rsh fork slurm ll lsf sge manual persist)

-launcher-exec executable to use to launch processes

-enable-x/-disable-x enable or disable X forwarding

Resource management kernel options:

-rmk resource management kernel to use (user slurm ll lsf sge pbs cobalt)

Processor topology options:

-topolib processor topology library (hwloc)

-bind-to process binding

-map-by process mapping

-membind memory binding policy

Checkpoint/Restart options:

-ckpoint-interval checkpoint interval

-ckpoint-prefix checkpoint file prefix

-ckpoint-num checkpoint number to restart

-ckpointlib checkpointing library (blcr)

Demux engine options:

-demux demux engine (poll select)

Other Hydra options:

-verbose verbose mode

-info build information

-print-all-exitcodes print exit codes of all processes

-iface network interface to use

-ppn processes per node

-profile turn on internal profiling

-prepend-rank prepend rank to output

-prepend-pattern prepend pattern to output

-outfile-pattern direct stdout to file

-errfile-pattern direct stderr to file

-nameserver name server information (host:port format)

-disable-auto-cleanup don't cleanup processes on error

-disable-hostname-propagation let MPICH auto-detect the hostname

-order-nodes order nodes as ascending/descending cores

-localhost local hostname for the launching node

-usize universe size (SYSTEM, INFINITE, <value>)

Please see the intructions provided at

http://wiki.mpich.org/mpich/index.php/Using_the_Hydra_Process_Manager

for further details

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Posted by 구차니

openmpi with heterogenerous

이기종간에도(arm + x86) 적용이 가능한가 보네.. 어떻게 되는 원리지?!

[링크 : https://rafaelaroca.wordpress.com/2011/08/31/mpi-on-arm/]

[링크 : https://github.com/open-mpi/ompi/wiki/Heterogeneous]

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Posted by 구차니

openmpi with openmp

openMP + openMPI 예제

그나저나 서버 구축부터 찾아 봐야겠네

[링크 : http://www.slac.stanford.edu/comp/unix/farm/mpi_and_openmp.html]

[링크 : https://www.open-mpi.org/projects/mtt/]

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Posted by 구차니

cpp string compare 와 ==

cpp에서는 string 형 변수일 경우 ==를 compare로 묶어놔서

둘이 같은거다 라는건가?

[링크 : http://stackoverflow.com/questions/9158894/differences-between-c-string-and-compare]

[링크 : https://msdn.microsoft.com/ko-kr/library/windows/desktop/e4abh74z(v=vs.80).aspx]

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Posted by 구차니

해싱 salt

salt도 대충 치면 안되는구나..

적당한 길이와 적당한 순서?

[링크 : http://starplatina.tistory.com/entry/비밀번호-해시에-소금치기-바르게-쓰기]

[링크 : http://www.mimul.com/pebble/default/2013/02/18/1361189648941.html]

[링크 : http://d2.naver.com/helloworld/318732]

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Posted by 구차니

php $_REQUEST

An associative array that by default contains the contents of $_GET, $_POST and $_COOKIE.

[링크 : http://php.net/manual/en/reserved.variables.request.php]

간단하게 post와 get으로 받은거 구분없이 사용하는 변수

[링크 : http://www.phpschool.com/gnuboard4/bbs/board.php?bo_table=qna_function&wr_id=251801]

[링크 : http://www.phpschool.com/gnuboard4/bbs/board.php?bo_table=forum&wr_id=115415]

+

get / post / cookie에 대해서 적용되고

[링크 : http://php.net/manual/en/reserved.variables.request.php]

Sets the order of the EGPCS (Environment, Get, Post, Cookie, and Server) variable parsing.

[링크 : http://php.net/manual/en/ini.core.php#ini.variables-order]

변수 우선순위에 의해서 Get이 우선권을 가질 듯?

request_order GP 인데..

이경우에는 Get와 Post만 파싱하는건가?

$ vi /etc/php5/apache2/php.ini

; This directive determines which super global data (G,P & C) should be

; registered into the super global array REQUEST. If so, it also determines

; the order in which that data is registered. The values for this directive

; are specified in the same manner as the variables_order directive,

; EXCEPT one. Leaving this value empty will cause PHP to use the value set

; in the variables_order directive. It does not mean it will leave the super

; globals array REQUEST empty.

; Default Value: None

; Development Value: "GP"

; Production Value: "GP"

; http://php.net/request-order

request_order = "GP"

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Posted by 구차니

php global

접근제어 키워드 라고 해야하나.

함수 내에서 전역변수를 '간편하게' 이용하려면

global $gbal;

이런식으로 선언해주면 $GLOBALS['gbal'] 이런 수고수러움을 해주지 않아도 되는 듯?

[링크 : http://devist.tistory.com/65]

<?php
$a = 1;
$b = 2;

function Sum()
{
global $a, $b;

$b = $a + $b;
}

Sum();
echo $b;

?>

[링크 : http://php.net/manual/en/language.variables.scope.php]

+

그래서.. mantis 소스에서 환경변수로 끌어온 다른 파일의 변수를 그냥 쓴건가...

+

mediawiki는 곳곳에 global 키워드가 보이네... mantis는 머지?

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Posted by 구차니

html+php login form

직접 타이핑 해서 만든건 처음이군..

일단 post와 get 방식으로 테스트를 하게 되었는데..

<form> 은 method를 지정해주지 않으면 기본값이 get 이기 때문에

method="post"를 넣어 주어야 POST 부분에 출력이 되어 나온다.

php에서 echo . 으로 잇는것도 첨 써보는군 ㅋㅋ

<?php

include('./conf.php');

echo "<pre>";

echo "POST<br>";

echo $_POST['id'].":".$_POST['pw'];

echo "<br>GET<br>";

echo $_GET['id'].":".$_GET['pw'];

echo "<pre>";

?>

<html>

<head>

</head>

<body>

<button type="submit">login</button>

</form>

</body>

</html>

[링크 : http://www.w3schools.com/howto/howto_css_login_form.asp]

[링크 : https://www.howtoforge.com/community/threads/simple-html-login-form.2895/]

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