Ubuntu :: Processor Running At 100 Percent - Fan Is Running At Max Speed
Apr 5, 2011
I can't figure out why but my processor is running at 100% on all four cores, and the fan is running at max speed. All I did was double click an a.out file created by g++, and it is running at full speed now.
Recently the power went when i was using ubuntu and my system shut down since the ups took too long to supply power. So i started my system and choose to boot linux, but it said display drivers not detected, linux running in low graphic mode, and it said 1. run windows in low graphic mode for now...2. reset to previous graphic mode- i chose this and it restarted, since then the ubuntu loading page appears and then my monitor goes blank although my processor is running.....why is this happening?.....i have a ati 5770 graphic card through which it should display.
The situation is that I have an MPI-parallel fortran program. I run it and it's distributed on N processors, and each of these processes must call an external program.
This external program is also an MPI program, however I want to run it in serial, on the processor that is calling it, as if it were part of the fortran program. The fortran program waits until the external program has completed, and then continues.
The problem is that this external program seems to run on any processor, and not necessarily the (now idle) processor that called it.
how I can call the program and ensure it runs only on this processor?
Extra information that might be helpful:
If I simply run the external program from the command line (ie, type "/path/myprogram.ex <enter>"), it runs fine. If I run it within the fortran program by calling it via
CALL SYSTEM("/path/myprogram.ex")
it doesn't run at all (doesn't even start) and everything crashes. I don't know why this is.
If I call it using mpiexec:
CALL SYSTEM("mpiexec -n 1 /path/myprogram.ex")
then it does work, but I get the problem that it can go on any node.
I just installed Ubuntu 9.10, replacing Windows 7.
its running a little slower than I hoped it would, loading movies takes a while, and when i switch to full screen, it takes about 5 seconds to catch up.
im suspicious that my video card driver might not be configured correctly. can anyone tell me what I might need to configure to get things running smoother?
other things on the computer are also running slow, like opening Firefox, it takes a while for the window to appear.
I am running Ubuntu 11.04 off of an 8GB flash drive. I have no hard disks but I do have a 3.2 GHz Pentium 4 with Hyperthreading and 1 GB of RAM. So, it shouldn't be my system that is causing it to run slow, but rather limitations of the USB (I'm pretty sure it's USB 2.0). Is there anything I can do, unnecessary processes I can kill, etc. to make it run faster?
When the summer-holidays are a fact and it's time for some fun I will be upgrading my home network with a diskstation of some kind, and since all models I currently looks at supports 10/100/1000 M/Bit networking it got me thinking.
My desktop also supports 10/100/1000 M/Bit networking and since I already uses a 10/100 M/Bit switch between my desktop and (file)server, it would be very easy to buy a new switch that also supports 1000 M/Bit networking and then connect the diskstation to that switch as well. But the router the new switch will be connected to is only running 10/100 M/Bit so the question is, at what speed will the new switch be running?
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I'm installing (X/Lubuntu) on a machine with only 448 mb RAM and a 2GHz processor. I'd definitively prefer Xubuntu, but if it'll be very sluggish I'll go for Lubuntu, because it is important that the machine runs at a decent speed. So which should I go for? Is 448 mb RAM enough for Xubuntu?
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There are drivers on nvidia website which "seem" to be a lot newer : 256.35 (using 64bit Linux) - are those "direct replacement" for the 195.36 which Ubuntu installs by default?
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Using the open source xf86-video-ati driver gives me an unacceptable alternative: Without a kernel boot parameter it's dead slow, glxgears shows only 200 frames/sec and my Opengl application (see below) is just unusable with this setting.
Adding the 'nomodeset' kernel parameter make the graphics much faster - glxgears reports 1800 frames/sec - BUT now my Opengl application freezes the machine (only a power cycle can revive it). I'm using the Python/OpenGL application "Impressive" to present pdf files.
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I've tried restarting the system and I've tried killing nm-applet and reloading it using Alt F2. I get some Debug error.
When I try to run nm-applet --sm-disable
It says an instance is already running and then gives me a warning.
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It says:
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Who would know for sure.
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