I'm student and I'm using VS with the libraries from intel parallel studio. I'm actually working with Intel Fortran. I have a code that was working so good, using all the processor and that help me to saving time. Yesterday mi windows had an upgrade (KB4023057), and now my code is not working as well it was, right now is using 30% of the processor. All the configuration is the same, the only change was the upgrade.
Some ideas ? What can I do ?
Your post is lacking too many details to provide a useful answer. A quick web search shows that the function of that update is a bit of a mystery. You can try uninstalling it and see if your application behaves differently. (One doesn't know if 30% is too much or too little CPU, nor what you have compared it against.)
Of particular interest:
...It may compress files in the user profile directory to free up space
IOW if your application is I/O bound .AND. if the data files are stored under
Then you may be seeing file compression/decompression overhead.
Same "crap" (technical term) with that stupid File Indexing system. If that update also instructed your system to re-index (as well as compress Users\...), then you may have to wait a loooooong time for it to finish (as well as afterword's having the overhead of compression/decompression)