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seen Aug 23 at 22:15

Just a computer rookie. Thanks for your enlightenment.


Oct
1
comment How many cores I am using on a Linux Server?
Thank you! As to "Identify for your particular system what the LOAD level is when you feel it's "acceptable" for other users to be adding more jobs", if the current load is not mainly caused by my running jobs then I would feel more free to use the rest CPUs, but if in the current load my running jobs take a fair amount then I probably have to give up using the rest CPUs. So do you still think I don't have to estimate the CPU usage of my total running jobs?
Oct
1
comment How many cores I am using on a Linux Server?
THanks you, Matt!
Oct
1
comment How many cores I am using on a Linux Server?
@ nagul: Thanks! I finally get it done by parsing the top
Oct
1
comment How many cores I am using on a Linux Server?
Thank you! I do check the overall system load. I have been told by one of my colleagues that I can not use up all the cores because who knows others will run their jobs soon and my jobs will last for quite a while. Do you also think I have to limit the cores I am using?
Oct
1
comment How many cores I am using on a Linux Server?
@ nagul: Yes system load is good and I also check that too. However some people keep telling me that I can not use up all the cores because who knows others will run their jobs soon. So I guess I have to limit the cores I am using. By the way, have you seen somewhere online scripts that check the CPU and memory load and dynamically submit jobs based on the usage? I have been looking them for so long. Thanks!
Oct
1
comment How many cores I am using on a Linux Server?
can you give an example of code for obtaining the number of cores used by all the jobs (processes) submit by a user?
Oct
1
comment How many cores I am using on a Linux Server?
I like to know a bash command that can tell me the number, since I want to use it in a bash script.
Oct
1
comment How many cores I am using on a Linux Server?
I am submitting a fair amount of background jobs to the server, so I like to write a bash script to check before I submit a job if the running jobs(processes) submit by me are too many, because I have to let other users have enough cores to use for their jobs. So I like to know what bash command can tell me how many cores my jobs are using now.
Sep
30
comment kill all processes of a user except a few in linux
you mean having two userIDs for the remote server? Just curious, can I create another one for myself without being able to switch to root?
Sep
30
comment kill -9 programs but they still hang on
in top, if type k and input the PID I can kill the processes one by one. So is this equivalent to some options for the command kill?
Sep
30
comment kill -9 programs but they still hang on
How would you look to make sure the process is not getting respawned? Since I own the processes, do I have permission to kill that process?
Sep
30
comment kill -9 programs but they still hang on
I submit my jobs in command line and in background, what would their parents be? And how can I find their parents if any?
Sep
26
comment Remote Router Access For Linksys WRT54GL
Thank you! Did you say Wireless LAN and Wired LAN are both unaffected whether Remote Management is disabled? I think Wireless LAN will not be allowed if Remote Management is disabled.
Sep
20
comment Command-line connect to wired network for Ubuntu
Thank you! The command fails to connect. Please see the update to the original post for the failing information. I am now using school's wired network. How to check if IP is served via dhcp? Also I think the cause of the problem might be that I change my wlan0 to be monitor mode (see superuser.com/questions/44161/…). Thanks and regards!
Sep
20
comment Wireless networking issue with Ubuntu
Thanks! I am using Ubuntu 8.10. Yes I want to test how secure my wireless network is (first stopping and trying to spoof(change your MAC), and then using air-crack-ng). Without the commands in (1), I cannot connect to my wireless network. So I think I should revert what I did with the Mac address and restart wlan0. That's my intention of (1). If (1) is wrong, could you please point out what is correct?
Aug
31
comment Will an executable moved to another directory still work?
Thanks! In your example, if I move /foo/baz as a whole, will that be all right? I wonder why such moving of a whole package directory are often viable in Linux. If the depended files are in "the same directory it is run from or in a sub directory" of the same package, are they always specified in the executable as relative path? If the depended files are in some general directory like /usr/local, /usr etc, are they always specified in the absolute path?
Aug
31
comment Will an executable moved to another directory still work?
In Windows, like some runtime error. In Linux, nothing happened yet. I am specially interested in the Linux case: how to make this move safe indeed?