libdevice User's Guide
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CUDA Toolkit v5.5
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Last updated
July 19, 2013
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3.310. __nv_umul64hi
Prototype:
i64 @__nv_umul64hi(i64 %x, i64 %y)
Description:
Calculate the most significant 64 bits of the 128-bit product x * y, where x and y are 64-bit unsigned integers.
Returns:
Returns the most significant 64 bits of the product x * y.
Library Availability:
Compute 2.0: Yes
Compute 3.0: Yes
Compute 3.5: Yes
libdevice User's Guide
(PDF)
-
CUDA Toolkit v5.5
(older)
-
Last updated
July 19, 2013
-
Send Feedback