Assigning 128 bits value to variable in CUDA

Asked Apr 22 '16 at 10:38

Active Apr 22 '16 at 19:19

Viewed 119 times

I am trying to implement an encryption cipher in CUDA. It uses 128-bit Key as input. Also, the operations that would be performed on this would be shift operation and addition. I have currently implemented it using array of size 2, each holding 64 bits of data.

From the CUDA documentation, I am able to allocate the vector using

int4 make_int4(int x, int y);

But unable to perform operations on it. Kindly point me where to look or help me. Thanks in advance.

edited Apr 22 '16 at 19:19

asked Apr 22 '16 at 10:38

Shripal Gandhi

2

What do you mean by "operations?". Do you mean mathematical operators or math library functions? Also, an int2 is a 64 bit long type, not 128 bit. – talonmies Apr 22 '16 at 10:58
Did you read this ? http://stackoverflow.com/questions/6162140/128-bit-integer-on-cuda – Taro Apr 22 '16 at 11:24
@Taro Thanks. That was useful. I didn't came across that one. – Shripal Gandhi Apr 22 '16 at 19:24
@talonmies I meant mathematical operations. And, yeah I did a mistake it was int4 instead of int2. Sorry. – Shripal Gandhi Apr 22 '16 at 19:24
@ShripalGandhi You're welcome. Glad it was helpful. – Taro Apr 23 '16 at 23:33

Assigning 128 bits value to variable in CUDA

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