80 Numerical Precision  In GPU evolution, numerical precision has been low, but has been improving  Newest NVIDIA processors have begun supporting double precision floating point One double precision unit (DPU) per SM 64-bit arithmetic, from previous limitation of 32-bit arithmetic  Some limitations still exist, to be carefully considered  Examples Double precision units are fewer than single precision units In kernel invocations, silent conversion may happen (double precision actual arguments from CPU to single precision formal arguments on GPU)  In GPU evolution, numerical precision has been low, but has been improving  Newest NVIDIA processors have begun supporting double precision floating point One double precision unit (DPU) per SM 64-bit arithmetic, from previous limitation of 32-bit arithmetic  Some limitations still exist, to be carefully considered  Examples Double precision units are fewer than single precision units In kernel invocations, silent conversion may happen (double precision actual arguments from CPU to single precision formal arguments on GPU)
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