I have 5 HP workstation connected with HP ML370 servers. My software "Synopsys" is node locked (run only on server)the problem is that when i run simulation its take too much time. I want to share server load on all 5 workstations on my network.how to utilize these workstations resources e.g RAM, CPU etc...
View 8 RepliesWhile converting some images using ImageMagick, I noticed a somewhat strange effect. Using xargs was significantly slower than a standard for loop. Since xargs limited to a single process should act like a for loop, I tested that, and found it to be about the same.
Thus, we have this demonstration.
Quad core (AMD Athalon X4, 2.6GHz)
Working entirely on a tempfs (16g ram total; no swap)
No other major loads
[Code]....
New to Fedora (from Windows), I am up and running ok with packages from the repository but only half ok with Processing, the Java graphics programming front end from processing.org.Their download gave me a .tgz file which Package Manager extracted for me into a location of my choice and where there is now a "processing" shell script.This works ok and I have managed to create a launcher on the desktop. That starts ok but always with processing's default action of giving you a new and automatically named work file.In Windows an existing Processing file (.pde file) could be "opened-with" Processing. Trying to do similar in Fedora I find that I am expected to nominate an Application to open with but Processing has not installed as an application.I guess the question is how do I promote Processing to be an Application?Or is there a different approach?
View 4 Replies View RelatedI was using ubuntu before i over to fedora, in ubuntu i had the commandline "hd + nameOfFile". what is the parallel command in fedora??
View 2 Replies View RelatedI want use two computer to run OpenFOAM or Fluent software.These two computers are connected via a cross cable. I have access to another by "ssh maysam@192.168.1.1" OR "ssh 192.168.1.1" The problem is i should have access to another PC by "ssh maysam-desktop" command which can run parallel. maysam-desktop is name of anothe PC and maysam is name of its user.
View 1 Replies View RelatedI'd like to connect a parallel port printer to my new desktop and have got a Connectland C36 cable that shows up as: Bus 003 Device 002: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port.I've tried the URI /dev/usb/lp0 but I don't mange to set the printer working. May I need any driver?
View 8 Replies View RelatedMy new Shuttle runs Debian fine, but like most new systems, the old serial and parallel ports are long gone. I have no problems with the serial port - there is a Sourceforge driver to use with most PL-2303 type USB to Serial adapter cables. But, I am having trouble googling up the USB to Parallel connection. There are no lack of USB/Parallel cables, but all that I have found come with canned software for Windows and only for connecting a printer. I have several non-printer devices that connect via the P-Port that I access using a Perl driver from CPAN. Anybody know of an open source *nix driver for any particular USB/PP cable? Or had any experience in moving from the straight PP to a USB/PP connection to a non-printer device?
View 1 Replies View RelatedI have a bash script with a line like this in it:
Code: mysqldump -uusername -ppassword --master-data=2 --single-transaction --quick --add-drop-table --add-drop-database somedatabase | gzip > ./somedatabase.sql.gz The problem is, I have about 16 databases I'm dumping like this, but it's dumping
[Code]....
So, does putting in a & after a command work in a bash script at all? The thought was, if I want to run them in parallel, should I do this?
Code: #!/bin/bash
./scripts/dumpthis &
./scripts/dumpthat &
./scripts/dumpsomemore & Where "dumpthis" is just the first snippet of code above.
I have been trying to install an old HP Laserjet 4100 printer using an USB to Parallel Cable (Cables Limited USB IEEE 1284 printer cable). The driver provided with the cable worked on windows XP and I was able to print. The cable is also sold as supporting Linux but it seems that is was tested for fedora core 4 and Moschip Support Team wrote me that ubuntu 9.04 was not supported. When trying to install the driver (makefile) I got a lot of errors (see annex) . I have a System 76 PC with ubuntu 9.04, kernel 2.6.28-17-generic, intel(R) Core(TM). Whwn connected the printer is not recognized.
How to install the cable ? Or any trade / model of printer cable really able to work with ubuntu ?
Additional information: lsusboutput, linux dirver file list, errors whwn carrying out the make and dmesg output
Additional information: lsusb indicates Bus 002 Device 002: ID 9710:7705 MosChip Semiconductor Printer USB to Parallel
The linux driver files are:
Errors when doing make:
I have a shell script to refresh some databases. Currently I open 5 sessions and to execute the five scripts.
Today, as test, I tried to see if I could run two refreshes simultaneously from one session using the '&':
. /refresh.ksh db1 &
. /refresh.ksh db2
The first one ran and the second one started only after the first one was finished. Could it be that the script refresh.ksh contains many commands and those are not pushed to the background? If so, what's the best approach to getting 5 db's refresh simultanously from on session?
I use an application called redbutton-browser to access some of the things available on the redbutton digital tv channels. It compiles fine if I use a simple make but fails if I try to run parallel jobs with make -j4. I'd like some help altering the Makefile so that it does a few commands sequentially before it does the rest of the Makefile in parallel.
The relevant bit of the Makefile looks like this:
Code:
ISO13522-MHEG-5.c:xsd2c.c ISO13522-MHEG-5.xsd add_instance_vars.conf add_rtti.conf
make xsd2c
./xsd2c ISO13522-MHEG-5.xsd
./add_instance_vars ISO13522-MHEG-5.c ISO13522-MHEG-5.h
./add_rtti ISO13522-MHEG-5.c > rtti.h
[Code]....
I am trying to print to an HP LaserJet 6L via a USB->parallel printercable, from a CentOS 5.3 machine using CUPS 1.3.7, but I cannot get itto work.When I plug the cable into the USB port on the CentOS computer, I seethat the following devices are created:
crw------- 1 root root 442, 6145 Aug 13 08:28 /dev/usbdev4.2_ep00
crw------- 1 root root 442, 6145 Aug 13 08:28 /dev/usbdev4.2_ep02
crw------- 1 root root 442, 6145 Aug 13 08:28 /dev/usbdev4.2_ep81
[code]....
Does Debian 6 "Squeeze" automatically run boot processes in parallel if not how do I
configure it to do so. Here is the quote from my /etc/init.d/rc :
# Specify method used to enable concurrent init.d scripts.
# Valid options are 'none' and 'makefile'. Obsolete options
[code]...
I was asked to research if it is possible to install a Debian distribution of Linux to HP Z420 Workstations as second OS (dual boot) in our lab. The lab is normally used for Computer Aided Design (Windows 7). The plan is to have parallel computing possible with these workstations on Linux side.
The link for HP Z420 Specs suggests amd64 distrubition should be supported. Tell me If I'm wrong as I have always been interested in software side of things.
Looking for info regarding installation of Debian to HP Z420 workstations as well as using these computers for parallel computing with Debian.
When I boot fc14 with an already defined printer connected on the parallel port, then I can use the printer. The printer appears on parallel:/dev/lp0. But, if the printer is not connected during startup, when I connect the printer I cannot use it. Nothing happens. I have no corresponding message using "dmesg" command when I connect the printer.
I cannot make cups see that the printer is connected, using "localhost:631" in firefox. Is it possible to "mount" the printer manually? Using "system-config-printer", the printer has to be "activated", even though it is not used or even connected. Then "parport" module is installed during boot (with other related modules: "ppdev" and "parport_pc").
Then, when the printer is connected, "dmesg" shows :
lp0: using parport0 (interrupt-driven).
lp0: console ready
And, of course, it is now OK to use the printer.
I have a Panasonic 3123 dot matrix printer which I am trying to get working on my Dell Vostro 420 running 11.3 (x64). Since Dell decided to eliminate on board parallel ports from their systems I've added one with a Startech PCI1PECP PCI card (uses a NETMOS NM9805CV chipset). I've confirmed that the printer works using an old laptop running Windows 2k with a LPT port running in ECP mode. When attached to my desktop the printer will (usually) shift the pin carriage etc when I perform a cold boot but will not respond when sent a test page in yast or cups (it is detected after a fashion and I have assigned the appropriate ppd from the Omni package).
The following is the relevant out put from lspci, lsmod and dmesg:
Code:
05:00.0 Communication controller: Device 1710:9805 (rev 01)
Subsystem: LSI Logic / Symbios Logic Device 0010
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx- .....
Code:
E [28/Oct/2010:11:59:44 -0400] Unable to bind socket for address ::1:631 - Cannot assign requested address.
E [28/Oct/2010:12:05:04 -0400] Unable to bind socket for address ::1:631 - Cannot assign requested address.
E [28/Oct/2010:12:08:52 -0400] [cups-driverd] Skipping "/usr/share/ppd": loop detected!
Is the parallel port still supported on OpenSUSE 11.4 ?
View 4 Replies View RelatedAre still the parallel printers suported under OPenSUSE 11.4 ????
View 1 Replies View RelatedI've been running an old DOS app that reads and writes the parallel port bits to do a control task. Its worked great running on Ubuntu 6.06 but I can't get the version on 10.04 to read and write the actual hardware. I can't find what is missing from the configuration, as I recall all I did on 6.06 was edit /etc/dosemu/dosemu.conf to uncomment the line:
$_ports = $_ports, " device /dev/lp0 range 0x378 0x37a" in the "Direct Hardware access" section and start the xdosemu session as root. The process runs in the background and has "just worked" for years. This has got me stuck as the last step of migrating from 6.06 to 10.04 -- everything except this, postfix, samba, etc. couldn't have been easier, but I'm stuck now
Yes the new motherboard parallel port is set for 0x378 and it shows in /proc/ioports. I guess it could be defective, but the software reads back the values it writes and thinks its working, its just none of the outputs change and changes on the inputs are not read so the code is stuck waiting for the initial response to its first output.
I am doing a project where 2 clients connect to server and communicate (chat) and transfer data one after other using sockets. I have working code for this in C language. Now our main aim is to create a communication link where two clients transfer multiple streams data parallely. To be more precise i want to transfer images files and audio files parallel at same time, so is it possible to send data parallel using one socket connection?
View 3 Replies View RelatedI have a simple testing program like this:
/*The Parallel Hello World Program*/
#include <stdio.h>
#include <mpi.h>
[code]...
My program is, I can't compile this program using gcc, and I can't find something like pgcc in ubuntu. How should I compile this program? After compiling, what should I do to run this program? Can I use something like mpirun to run it? I want to try to use both cores of my computer to run it and make it shows Node 1 also besides Node0.
For several months I now and then tries to get my 64-bit installation to work satisfactory. My 32-bits work but not as good as my 10.3 versions. Last problem is the parallel port. Neither cups or yast finds the printer. Hardware probing gives this:
34: PCI 300.0: 0701 Parallel controller (ECP)
[Created at pci.318]
UDI: /org/freedesktop/Hal/devices/pci_1415_c110
Unique ID: svHJ.ok4f_YyUQQF
Parent ID: gZD2.WHfUklesIM4
SysFS ID: /devices/pci0000:00/0000:00:0b.0/0000:03:00.0
SysFS BusID: 0000:03:00.0
[Code]...
I have been tinkering around with CUPS for the last few days trying to get print sharing to work. Did not have problems printing documents from this desktop. When I went to print a document I found that my printer was not listed. Using localhost:631/admin shows lists the printer, but when I open System->Administration->Printing, the window opens (after a few seconds), grays out, and a blank display. The option to add a printer is grayed out.
In terminal window:
lpstat -v
lpstat: Connection timed out
lpinfo -v
lpinfo: Connection timed out
What happened to the parallel port?
I would like to define a IPv4LL address (169.254.0.0/16) in parallel with the DHCP address received from the server on the same network card. I tried to modify /etc/network/interfaces to that effect (see below), but either I only manage to get one of the two at any time.
auto lo
iface lo inet loopback
auto eth0 eth0:1
iface eth0 inet dhcp
iface eth0:1 inet ipv4ll
I am a newbie to VirtualBox. I have installed it on my Fedora 13 and installed win xp sp3 as a guest system and its ok except for 1 or 2 issues. I have a usb to paralel converter for the printer (Prolific Technology, Inc. PL2305 Parallel Port) which is greyed out in usb devices if I log as a normal user althought when I log to the Win XP as root it works fine 9 seems to be rights issue but don't know where to go. Second issue: I have a modem which is no discovered by the win XP.
View 2 Replies View Relatedi want to know whether we can write a shell script which can utilize 2 CPU's of a cluster...I heard its possible through C Shell [URL] But im familiar with bourne shell only....So is there a possibility to write Parallel Scripts.
View 5 Replies View RelatedI do not know much about parallel computing, but I do have access to a few cpus.I am trying to write a program compatible for multiple cpus, but to do it, I need to ensure unique directories. I have figured out that the time of creation, process id, and cpu id form a unique combination I can use to name files (up to the degree of accuracy of the internal timer).Anyway, I am using perl. I know how to find the process id and I know I can get the time pretty easily, but as I said, I do not know much about hardware or parallel computing. All I need is a way to identify each cpu in the system and I am set for half of my program (the other half is significantly more straightforward and is mainly about text parsing.)
So anyway using terminal, perl, etc., I could access this identification? Or could someone at least tell me the name of what I am looking for? I have seen the words "ip" "MAC" "hostid" and a bunch of other "id" things come up in my googling, but I really cannot figure out which is the one relevent to me
I would like to add a driver to /dev which can light the LEDS using the parallel port. Where I should start from. I am trying to learn device driver programming, which is quite difficult for me now.
View 8 Replies View RelatedI've got a fresh install of ubuntu 9.10 on a fresh disk and everything was going perfectly. I bought a Usb=>parallel cable to connect my old parallel port printer.When I try and print, sometimes it works and sometimes it doesn't. Sometimes the job will go to the print queue and then nothing happens, in this case if I unplug and replug the usb cable a couple of times it usually prints the document. Sometimes the job doesn't show up in the print queue at all and sometimes it prints the document with no problems.
Whenever I use lsusb, I never see the printer in the list of attached usb devices (even when the printer is printing!). Apart from root hubs, the only two devices ever listed with lsusb are my mouse and scanner.
I need to spawn 2 processes in parallel and each takes an hour or so to finish. Is the following one of the correct ways of using `at` in a script run by crontab?
Code:
#!/bin/bash
# define the env var, cd, etc... assume everything ok up to this point
date +"The start time is %H:%M:%S"
rm -f a.fin
at now <<END_OF_AT
do_a &> a.log
[Code]....