topic Argh, I guess I have to wait in OpenCL* for CPU

Losing all autos and local symbols when single-stepping in CPU debugger

allanmac1 — Tue, 15 Nov 2016 20:57:31 GMT

I'm using a VS2015 / Win10 workstation with the latest CPU driver and Code Builder installed (4.0.0.1).

I'm single-stepping through an OpenCL 2.1 + AVX2 CPU kernel and after a few lines all symbols in the Autos and Local windows disappear.

Single-stepping appears to continue to work because the line arrow is properly moving.

I've tried targeting both x86 and x64 and see no difference.

The build options for clBuildProgram(..) are "-g -s <kernel absolute path>".

Any ideas?

Jeffrey_M_Intel1 — Wed, 16 Nov 2016 06:15:35 GMT

So far I have not been able to reproduce.

Could you send more info about your system:

processor model?
Not sure if I understand the version. Do you have the latest Intel(R) SDK for OpenCL applications installed? (Version reported by integrated CodeBuilder should be 6.3.0.1904).

An example kernel could also help us investigate.

allanmac1 — Wed, 16 Nov 2016 16:31:00 GMT

The processor is a dual Xeon E5-2690 v3 and the latest Code Builder 6.3 is installed.

The "CodeBuilder API Debugger 4.0.0.1" number comes from the "About Visual Studio" window and is probably unimportant.

I narrowed it down to the debugger losing symbols as soon as it initializes a union type. The size of the union is equal to a cl_ulong.

Jeffrey_M_Intel1 — Thu, 17 Nov 2016 06:52:47 GMT

I've replicated and filed as a bug. Thanks for this report.

allanmac1 — Thu, 17 Nov 2016 16:10:00 GMT

Argh, I guess I have to wait for a new release of Code Builder?

( Changing the codebase to just use native types and structs isn't feasible )