Caveat in using Visual Studio Express 2015

On my Windows 7 computer ‘Mithral’, I recently installed and started using “Visual Studio Express 2015″, which has Update 3.1, and am happy with it overall.

However, there is a type of malfunction which can take place, and apparently did. This IDE detected that I have 8 cores, and decided as a default that it would try to build as many as 8 targets concurrently, to maximize its speed. It did not detect that my 8 cores are threaded as 4, which is of minor significance. I changed the setting to 6 simultaneous builds, which means to me, that for each of the 6 targets, only one source file should be in the process of being compiled at once.

A type of condition seems to be possible, in which for an unknown reason, the application starts to build an extreme number of targets, which on my system meant maybe 15-20 targets. In the Task Manager, I saw up to 20 ‘cl.exe’ processes running at once. This was what led to an ‘OOM’ (‘Out-Of-memory’) condition, and required me to force the application to close from the Task Manager, as the IDE window had also stopped responding.

After that, I was not sure of the status of my build, so that I Cleaned the build, and also rebooted my machine, because the worst thing to my mind, would have been a not-clean shutdown. It seems that the actual reboot may not have been necessary.

After the reboot, I was able to build my Solution again, with no ill effects.

I am not sure what triggers this error, but do remember that on that occasion, I had Minimized the IDE application window and Restored it again. The whole thing gave me a bigger scare than was necessary, since no long-term corruption resulted.

Dirk

 

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