I have Phenom II X6 1055T. If Turbo Core kicks in, the speed should go up to 3.2GHz.
Problem is, it never kicks in. My kernel enabled Turbo Core already.
dmesg :
I am guessing, TurboCore depends with the P-State reading and cpu frequency thingy. As you can see, P0 are not 3200MHz (if my hypothesis are correct). Or perhaps i am wrong. I tested by not doing nothing and running folding program on one core with conky monitoring. Conky reads 5 cores at 800MHz, and one core at 2.8GHz.
TurboCore is enable on windows xp. I can see the core sometimes goes up to 3.2Ghz occasionally.
I have installed Ubuntu server 10.10 on my new computer which uses AMD Phenom II X6 1090T. But I have noticed that my CPU cores were not able to run at 3.6GHz at any time, even when I only have one CPU-intensive computing job. They are either at 3.2 GHz or 800 MHz, like this
Code:
$ cat /proc/cpuinfo | grep -i "cpu Mhz" cpu MHz: 800.000 cpu MHz: 3200.000 cpu MHz: 3200.000
[code]....
My maximum CPU frequency seems to be locked at 3.2 Ghz:
i am running some programmes on gcc compiler and i have to check same programmes on turbo c compiler. But i do not have this c turbo compiler.i have done some searching and found that it is not possible to install turbo c directly ,for this i have to use dosbox.ok now the main question is that for this i must have c++ setup which i do not have.
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.
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
I have used TurboTax online for several years to do my return....this year they are refusing Firefox running on a Linux OS!Anyone know of an alternative that is Linux friendly?
I 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.
Assume 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)?.
In our college all the systems (running on windows xp) have TURBO C/C++ installed on them which we use for C programming. I recently installed ubuntu 10.04 on me laptop (DELL Inspiron 14R (N4010) with some modifications) i read somewhere on the internet that Gedit can be used for writing a programme in ubuntu which can be compiled using gcc. Well if i use Gedit rather than Turbo c will i experience any differnce?, i mean is there any problem in doing so?? Or i should prefer running turbo c using DOS BOX?
I 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?
Due to some reason every-time I boot the laptop the power governors reset themselves to "ondemand". Which causes my laptop to overheat until it shut-downs. I tried adding this line to grub Code: Select allGRUB_CMDLINE_LINUX_DEFAULT="intel_pstate=disable" which kinda worked, but only on cpu 0.
Code: Select allcpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpufreq@vger.kernel.org, please. analyzing CPU 0: driver: acpi-cpufreq
I've clean installed over a friend's win98 with Mint 7 (disc from lab a year? or so ago).
My Optus modem prompted the wizard and now always works fine,ok speed, and I updated Mint with 300 new files etc.
But my friend's new Telstra Turbo modem,[Sierra brand] although it shows a blue light flashing, doesn't get the wizard connection process started, and there's just NO sign on Mint that it's plugged in.
If I can get it to work, it will increase the number of people I know who use linux to 1.
I've got a dual Xeon 5570 (Nehalem) server. It clocks down properly, but never, under any circumstances that I've found, clocks up past its TSC. Even when running basically nothing but cat /dev/zero > /dev/null, nothing gets clocked higher than the TSC. Below is the turbostat output, which clearly knows what the hardware is actually capable of, but it never actually achieves it. I'm running Lenny, with backported kernel 2.6.30-bpo.2-amd64. I tried the 2.6.32 backport and there wasn't any difference. know where I should look next? BIOS settings? Do I need to change some kernel option and recompile?
# ./turbostat Nehalem multiplier 22, TSC frequency 2933 MHz Nehalem 4 cores active: 24 mult, max turbo frequency = 3200 MHz Nehalem 3 cores active: 24 mult, max turbo frequency = 3200 MHz Nehalem 2 cores active: 25 mult, max turbo frequency = 3333 MHz Nehalem 1 core active: 25 mult, max turbo frequency = 3333 MHz
I have an acer 532h aspire one, running ubuntu 10.04.
Basically, I bought a Telstra Turbo USB broadband stick and I've been having a bit of hell getting it to work. First I couldn't get the computer to recognize it had been plugged in at all. I downloaded the modeswitch packages to no avail. I tried a few other terminal tweaks but they didn't change anything either. I left the card in and restarted the netbook and it finally recognized the wireless card. I was able to surf the internet for an hour or so a couple times. But after stowing the computer away for a couple hours and turning it on again, I found that this work around was no longer effective. So now I'm back to the blue light never blinking and I have to tether my phone and pay ridiculous data charges because I'm in the middle of nowhere.
I'm really new at troubleshooting things that don't work right out of the box.
It's a telstra turbo prepaid wireless broadband. The stick isn't even recognized as removable media.
I just installed a new HP DL360 with 32 GB of RAM and a Intel Xeon X5550 which supports speed stepping and turbo mode. I've enabled turbo in the BIOS, but cannot seem to get CentOS 5.4 to make use of either of these features. I've been googling for a solution for a while now, and tried various things, such as installing cpufreq. However, when I type cpufreq-info, I get this:
# cpufreq-info cpufrequtils 005: cpufreq-info (C) Dominik Brodowski 2004-2006 Report errors and bugs to cpufreq@vger.kernel.org, please. analyzing CPU 0:
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)
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
