ImageMagick's display GPU "memory leak"?

I'm testing CUDA app and I have run into strange memory issue:

My program performs some image operations and displays it using ImageMagick's display program. The problem is that every time I run that IM's display I get more GPU memory usage, so less memory for GPU computation.

I'm using IM's display, because I couldn't find anything that displays image from the pipe input. Any suggestions?

Anyway why IM's display takes so much GPU memory and why 开发者_C百科is it not freed?

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Based on your question, you're attempting to display a series of files in sequence using a shell not unlike Bash after performing a set of GPU-intensive operations. You're curious why more GPU memory is being consumed with every subsequent invocation of ImageMagick display, which appears to be closing out successfully after the conclusion of each operation.

We may further theorize that you're using ImageMagick's OpenCL support for at least some of your processing. While we don't have enough information to determine what your GPU's texture buffers look like at the completion of each rendering via display, I speculate your GPU isn't freeing textures expediently, causing memory to slowly creep up.

Instead of continuing to build conjecture around this hypothesis, I will instead recommend a tool to debug your issue: gDEBugger. This should allow you to interrogate your video card to determine exactly why things are slowing down.

Best of luck with your application.

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I know it's old, but we have figured out that using pipes (popen()) makes sophisticated copy of the program in memory, what also causes copying the end program directives, or whatever called... So when I close program opened with popen I also finish all CUDA related context that are usually freed in "background", when program ends. So cleaning CUDA memory after I close popen application won't work, and I thing here was my memory leak and general major program error.

I hope someone will find it useful.