awkehwe82397rfaowUI

Printf outputs incorrect numbers in Stream SDK 2.0 Final

Discussion created by awkehwe82397rfaowUI on Jan 5, 2010
Latest reply on Jan 6, 2010 by genaganna

I think I've stumbled onto a bug with the printf function in OpenCL with the ATI Stream SDK 2.0 Final. If you look at the attached code for a sample kernel, you would expect it to output

Decimals: 1977 65000

However, it does not. Instead I get:

Decimals: 8 515546592

which is simply wrong. Is this a known bug? I was hoping to use printf to help with debugging.

__kernel void TestKernel() { int nIndex = get_global_id(0); if (nIndex == 0) printf ("Decimals: %d %ld\n", 1977, 650000L); }

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