Greetings...

Hm, I suppose I have to be careful - this initial blog title here implies I'm a fluid dynamicist. That's not my main research focus although I am in fact presently working on a project in that topic. I'm really a geophysicist, who mostly uses sound or earthquake or electromagnetic waves as remote sensing tools to study the ocean and earth and other planetary bodies, using a type of math called "inverse theory". So maybe I'll need to change the blog title after a while, but meanwhile I admit I loved the alliteration and so I'm sticking with it for now. By the way I'm also somewhat of a fanatic for philosophy and a fond father and family man. ;-)

This blog is a mixed bag of perhaps 2/3 technical entries and 1/3 random musings on physics/life intersections. Note you might also be interested in my website at the Applied Physics Laboratory too...


Tuesday, May 21, 2013

Server with the fringe on "top"...

Just stumbled on a much nicer, expanded version of the *nix command line tool top (process listing/manager tool), called htop.  Cool - what I especially like about it is its little graphical display of cpu usage meters for each individual processor in a machine; the rest looks similar to top but with highlighting and extra features - and all configurable.  And you can scroll up and down the processing listing too!

Looks like it's installed by default already on my Ubuntu machines, but not on my Macs.  (And for the record I think the output formatting in the OSX version of top is awful anyway!)  For that I found this guy's webpage offering a precompiled OSX binary (but you could compile it yourself if you prefer, see link at bottom of his page).

Here's a screenshot of what it looks like on an 8-processor Ubuntu cluster node...



(apologies for the title pun, couldn't help myself.  ;-)

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