I have two truecrypt volumes which I usually load and once I do my cpu usage peaks in the graph. After I exit truecrypt , System Monitor shows two KDE4 running , each using 50% cpu.
The only way to get out of this is to restart.
i am running gigabyte GA-M68M-S2P and AMD sempron 2.7. the problem is when i try to run dual core. it will boot and run for 2mins then it crashes. single core runs perfect.
View 6 Replies View RelatedJust a quick question. Does Kubuntu Karmic support core 2 E8500 out of the box or do you need the SMP kernel?
View 3 Replies View RelatedI've a Compaq CQ61 laptop, and i noticed that one of the cores is always at 100%.
I didn't check the duration of the battery but surely it will "eat" my battery in a hurry
I just loaded F14 on an old Dell Dimension 3000 with a dual core processor but only one is showing. Here's the output from top:
processor: 0
vendor_id: GenuineIntel
cpu family: 15
model: 4
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I have a command line OCR program called OCR Shop XTR (Vividata corp) that I am using on a system with a 6-core AMD chip. I changed the bios so that the 6-cores were activated, but htop shows me that while the program is running, I am only getting activity on one core (the program maxes out the one core with consistent usage between 97% and 100%).
I have read that many programs are not written to take advantage of multiple core cpu's. However, I am just hoping that there is some way to get this program to take advantage of the extra cores. Does anyone know of a way to invoke programs from the command line which would spread the workload out among additional cores?
Here is the output of uname -a:Linux linux 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100 i686 athlon i386 GNU/LinuxAnd here is the output for one of the cores from cat /proc/cpuinfo:processor : 5
vendor_id : AuthenticAMD
cpu family : 16
model : 10
model name : AMD Phenom(tm) II X6 1100T Processor
stepping : 0
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Is there any Linux API that will let me control on what core will a thread run? If not, do I have to use assembly language?
View 2 Replies View RelatedI have now installed Wheezy on two different hard drives and in each case it seems only one CPU of my dual core CPU computer is recognized. System Monitor, Gkrellm and lscpu show just one when prior to the new install the old Wheezy showed both CPU's. I have put the hard drive into two other computers with dual core CPU's and all show just one CPU.
Interestingly System Profiler and Benchmark (hardinfo?) > Devices > Processors now show a large amount of processor infomation when with the old Wheezy I would only see both CPU's listed and nothing else.
I recently read in a forum that by default the Linux kernel only activates one of two cores in a dual core processor. Searching online gave one option to find out and that was the mpstat command. I therefore ran the command and got the following output.As the result says, it shows only 1 cpu. I was wondering what I could do to activate both cores in my machine, and whether doing so was going to cause me any problems.
View 14 Replies View RelatedAssume someone bind a particular process to a particular CPU core(In multi core machine) by using sched_setaffinity() like functions. Then how we can get that process running core id and CPU core utilisation of that process on that running CPU core(Pragmatically or by a Linux command)?.
View 5 Replies View RelatedI have created a virtual machine of a system running Fedora Core 4 and I need to upgrade it to Fedora Core 10. Based on what I have read, it iis possible so I started theupgrade process. I get an error message saying that /dev/hda6 (my root paritition does not exist) even though it does.
Does the installer need to read a label from /etc/fstab? I executed tune2fs -L / /dev/hda6 amd ,and added LABEL=/ for the corresponding entry for fstab. but the FEDORA CORE 10 is still giving the same problems for the installation process. Should I upgrade to an intermediate verson like Fedora Core 7 first?
I've a program that launches new processes, and wait for them to die before it exits. So, for example, my program is a process, and it launches 3 more processes, and when the 3 child processes end, it will exit.
As you see, at end of the example, the program used a total number of 4 processes.
1 - Now, I'm running this program in a CPU with 4 cores. This means that the program used each core for each process?
2 - How can I know which core the program used?
I want to generate core dump files from my program when it crashes. Its a pretty big process and has about 10-11 threads in it.I have followed the documentation to enable core dump by setting ulimit to unlimited etc. I quickly tried "A demo program creating a core dump" from the following webpage, which succeeds in Segfault and dumping a core file in the directory that I configured.However, I tried running my original program and caused it to crash. I did this by making calls to kill(), raise() or the same null pointer access as shown in the webpage above. In each case, my program crashed but did not generate a core dump file. Am I missing something?My program is in C++ and my environment is Redhat 9.0 (kernel 2.4.20)
Going through the "Why do I NOT get a core dump?" section on the same webpage as above, I can see two potential problems. One - there are issues with the suid/sgid (bullet # 6). I am not able to change any settings with suid because my system does not contain either /proc/sys/fs/suid_dumpable or /proc/sys/kernel/suid_dumpableTwo, my program has threads in it and the bullet # 8 is the problem.
We have a small cluster of 20 HP systems, all running CentOS 5.3 in an NFS-root environment. Half are quad-socket, quad-core Xeon E7340 @ 2.40GHz (total 16 cores), the other half are 8-socket, quad-core Opteron 8354 (total 32 cores). All systems have a Mellanox Infiniband adapter ("Mellanox Technologies MT25418 [ConnectX VPI PCIe 2.0 2.5GT/s - IB DDR / 10GigE] (rev a0)")
With kernel 2.6.18-128.1.6.el5, infiniband works fine on all systems.
With the update to kernel 2.6.18-164.11.1.el5 (and both types of node running the same NFS-root image), the 16-core Xeons still work fine. Infiniband no longer works on the 32-core Opterons. Specifically, either the ib0 interface fails to appear, or it does appear but when configured with an IP address, doesn't actually work. In either case, loading the IB kernel modules takes a long time, but I haven't instrumented the load script yet to see which module, if any, is at fault. More errors listed below.
However, if I tweak the BIOS of the 32-core systems to reduce the per-socket core count to 2 (so effectively 8-socket, dual-core, down to a total of 16 available cores), Infiniband starts working again. Putting it back to 32-cores makes it fail. Booting the older kernel makes it work again. In summary: old kernel, IB works on all systems. Newer kernel, IB only works on 16-core systems.
Updating the IB firmware from 2.5.0 to 2.7.0 (latest available) doesn't help. I also did a full 'yum update' to make sure that libmlx4, openibd all other associated packages were up-to-date. Doesn't help either.
Some errors that appear on 32-core nodes:
ib_query_port failed (-16) for mlx4_0
ib_query_port failed (-16) for mlx4_0
mlx4_core 0000:04:00.0: SW2HW_MPT failed (-16)
mlx4_core 0000:04:00.0: SW2HW_MPT failed (-16)
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Only Single core active on quad core AMD when acpi is active.with acpi=offuname -aLinux dvip4 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 x86_64 GNU/Linux
Code:
cat /proc/cpuinfo
processor : 0
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i download the rpm package of gcc .
View 10 Replies View RelatedI am in school for my CIS degree and the book I am using this session covers Windows XP and Fedora Core 4. I am having trouble finding & downloading Fedora Core 4. My question is: Is there a big enough difference between Fedora Core 4 and Fedora Core 14 that I would not be able to use 14 instead of 4?
View 14 Replies View RelatedHow can I upload an entire folders worth of stuff at one time?
View 2 Replies View RelatedI have installed win7 and Ubuntu on acer emachines E430. Had some problems with boot but have fixed those with help from here.The problem I didn't see is that when I am in Windows file manager only show half of hdd. I can see the entire one in ubuntu.I dont even see Ubuntu through win. But through Ubuntu I can see win folder.
View 5 Replies View RelatedI have succeeded in deleting my former Windows XP partition and it is now unallocated. How do I allocate all of the space to Ubuntu?
Attached is my Gparted screen. There was an error when booting Ubuntu initially and I was never able to dual boot. XP is gone now. I want Ubuntu to have all the space
I just bought a new Kingston DataTravler G2 16GB usb drive and was wondering if it was possible to encrypt the entire device.As in, it would require a password before even seeing any files. If possible I'd like something that works on all OS's but if not any suggestions would be great.
View 3 Replies View RelatedUbuntu 10.4
I have a few .chm files that I can view in xCHM or other chm file reader programs.
However, what I really want is to just print out every page of the .chm into one big .pdf file. Then I can read it a lot easier and it is much more portable for me.
Does anyone know any command line or tool that can output every page of a .chm file, formatted, in order, to a PDF or just the Printer?
Can i move the entire HDD with the installed 64 xubuntu from one computer to another.
Will it be any problems ,i use the os system just to run my game servers.
Extra is lampp and some Databases ...
will it intsall drivers automacicaly .
I just want to know if its possible to do it ,
I've searched some older posts and they said to use partimage, but this program doesn't support ext4 file systems. Here's the original post: [URL].. So how would someone backup their entire ext4 partition so the owner can mess around with some graphics drivers
View 3 Replies View RelatedCustdistro means it will backup your all/thing without/home and customback means it will backup all thing in /. It can create an ISO if your backup is less then 4 GB. Well, i've made a lot of changes to ubuntu 10.04 and now i love it! It does everything i'll want from any computer. This took me a lot of time, follow several tutorials and destroy the entire system a couple of times. The last one is a BIG problem because restoring my system to the state before i ****** all up takes some time again.Do any of you guys know how to backup all my system settings, programs and files? So that if i corrupt my system again i can restore it to be exactly as my current state?
View 9 Replies View RelatedI would like to install the entire Ubuntu OS to my USB drive. I know persistence works with it fine, so it would be perfect for traveling and on the go operation. The only question that I have has to do with the booting of the OS. Normally, I know I would have to restart the computer and boot from the USB. Then I came across MojoPac, and I think it is a cool idea. It starts up once the USB is plugged in and there is no need to restart. Would it be possible for me to simply plug in the USB on a Windows PC and have Ubuntu run in a similar fashion?
View 8 Replies View RelatedI have installed a number of softwares on my system,and well a recent power surge costed me my system with all those softwares,SO is there a way for me to sort of compress or make a live disk of my installation including all the softwares,so even in case of a hard disk replacement,i ay not lose my system.
View 12 Replies View RelatedI've got an odd problem and was wondering if anyone had any insight. I'm on Ubuntu 9.10 on a Gateway E-100M and everything works great except for firefox. My machine will hard freeze about once a day when using firefox. The whole OS -- no mouse movement, no keyboard response, etc.I've switched to Chrome for weeks and I get no issues at all. I switched back to firefox and it hard froze within the first hour or so. I know it's unusual that an individual program would freeze the whole OS rather than just crash, but it seems to be a fairly consistent pattern.
View 2 Replies View RelatedHow to set XBMC to not take up the entire screen?
View 1 Replies View Relatedwhere I can find a tool / utility that recover my precious mp3 files?I deleted and cleared my trash.
View 9 Replies View Related