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	However, ~~the applications will not operate on Narval~~ if ~~your code was~~ compiled on a system ~~using~~ one or more <tt>-xXXXX</tt> ~~options~~ such as <tt>-xCORE-AVX2</tt> because the Intel compilers add ~~extra~~ instructions to verify that ~~the~~ processor is by Intel. ~~This being said~~, the <tt>-xHOST</tt> ~~on Narval becomes the same as~~ <tt>-march=~~core~~-~~avx2~~</tt>.		However, if you have compiled a program on a system which uses Intel processors and you have used one or more options like <tt>-xXXXX</tt>, such as <tt>-xCORE-AVX2</tt>, the compiled program will not work on Narval because the Intel compilers add additional instructions in order to verify that processor used is an Intel product. On Narval, the options <tt>-xHOST</tt> and <tt>-march=native</tt> are equivalent to <tt>-march=pentium</tt> (the old 1993 Pentium) and should <b>not</b> be used.