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Old 2016-12-17, 10:11   #12
NBtarheel_33
 
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"Nathan"
Jul 2008
Maryland, USA

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Quote:
Originally Posted by ixfd64 View Post
I had not seen that thread and hadn't been keeping as abreast of GIMPS news as I might usually be. My apologies for starting yet another thread. Looks like this has been an ongoing problem with Xolotl's hardware. The tests that are returning "composite" but with zero residues are quite curious. Perhaps these tests are completing (with non-zero residues) but something is happening right after the completion of the test that zeroes out the residue (or at least the lower 64 bits).
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