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https://software.intel.com/en-us/articles/non-commercial-software-faq#6
Q: I am engaged in academic research. Can I use the non-commercial product?
A: If you, as an individual, are receiving any form of compensation for the research project (i.e., you receive a salary, or funding, etc.), you do not qualify for a non-commercial use license. However, you may qualify for the academic license (Click to education offerings page)https://software.intel.com/en-us/faq/licensing#compilers-differences
From Intel's FAQ on their licenses, more generally
https://software.intel.com/en-us/faq/licensinglicensing#compilers-differences
Q: What are the differences between evaluation, free, and paid compilers?
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