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How do I debug an MPI program?

I have an MPI program which compiles and runs, but I would like to step through it to make sure nothing bizarre is happening. Ideally, I would like a simple way to attach GDB to any particular process, but I'm not really sure whether that's possible or how to do it. An alternative would be having ea...
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Vim and Ctags tips and tricks [closed]

I have just installed Ctags (to help with C++ development) with my Vim (or rather gVim), and would like to find out your favorite commands, macros, shortcuts, tips that go along with it... ...
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Team city unmet requirement: MSBuildTools12.0_x86_Path exists

... the files from my x64 machine based on this article so that I didn't need to install vs2012 (though, I did have the change the path to remove x86 on the 32bit machine): ...
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?

(Related to this question, EF4: Why does proxy creation have to be enabled when lazy loading is enabled? ). 4 Answers ...
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Callback to a Fragment from a DialogFragment

Question: How does one create a callback from a DialogFragment to another Fragment. In my case, the Activity involved should be completely unaware of the DialogFragment. ...
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?

... According to "SQL Performance Tuning" by Peter Gulutzan and Trudy Pelzer, of the six or eight RDBMS brands they tested, there was no difference in optimization or performance of SQL-89 versus SQL-92 style joins. One can assume that mo...
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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?

What the title says: what does it mean to encapsulate a variable in {} , "" , or "{} "? I haven't been able to find any explanations online about this - I haven't been able to refer to them except for using the symbols, which doesn't yield anything. ...
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Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an

... function), they are equivalent. Use them when binding a handler directly to an element, like this: $(document).click(function() { alert("You clicked somewhere in the page, it bubbled to document"); }); If this element gets replaced or thrown away, this handler won't be there anymore. Also el...
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What is monkey patching?

I am trying to understand, what is monkey patching or a monkey patch? 8 Answers 8 ...
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How can I get Maven to stop attempting to check for updates for artifacts from a certain group from

...e probably around 70 or so individual artifacts, which are roughly split into two libraries of shared code and maybe ten applications which use them. All of these items live in the namespace com.mycompany.* . ...