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multiple calls to clAmdFftTeardown() cause crash

Question asked by tim.dahmen on Nov 29, 2012
Latest reply on Nov 29, 2012 by bragadeesh

We are using the fft library in a submodule of our software that needs to perform some operations in frequency space. The general idea is that

 

When the submodule is started, we also initialize the fft library using the following code:

 

setupData = new clAmdFftSetupData();

clAmdFftStatus status = clAmdFftInitSetupData( setupData );

status = clAmdFftSetup( setupData );

 

Then we perform several fft operations till we are done with the module and close our module. When we close the module, we also close the fft library using

 

clAmdFftTeardown();

delete( setupData );

 

This works good so far. The problem is, that once we closed the fft library, it seems impossible to initialize it again later. When we want to go back later to the fft module, and do the above twice, the second call to clAmdFftTeardown() causes an SEH exception.

 

Now obviously we could implement some workaround to delay closing the fft library till the end of the program, but that would be kind of a last resport. Is there any experience on the above behaviour?

 

regards Tim

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