Reply to post: Re: Shades of the Pentium floating point bug?

2 + 2 = 4, er, 4.1, no, 4.3... Nvidia's Titan V GPUs spit out 'wrong answers' in scientific simulations

Tony Gathercole ...
FAIL

Re: Shades of the Pentium floating point bug?

Or even the similar floating-point problem with the DEC VAX (8600/Venus family I think) circa 1988? Recollections of my then employer's chemical engineering department having to re-run significant amounts of safety-critical design related computations over a period of weeks and months on alternative (slower) VAX models. In the support teams we ended up scheduling low-priority batch jobs running tasks with known results set up to flag re-occurances of the problem as it wasn't failing consistently.

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