java application doesn't work right started by visual profiler on linux

Developer Tools Other Tools Visual Profiler and nvprof
1

I’m trying to profile a java application in which I am going to convert the underlying C library it calls to CUDA. I am on a desktop with Linux Mint sarah and I have CUDA 8 toolkit installed and running.

The problem is when the application runs in the profiling case, some of the dialogs do not draw correctly so I cannot start the workload. There is a configuration dialog that comes up and all the buttons and
text are blank.

In this case there is not yet CUDA, but even when I have the configuration settings to CPU only, this problem still occurs. I don’t have much time to write something to drive the library by a non-Java way, though I could do so as a last resort.

I’ve tried adding these options to nvvp.ini (after the java line):
…/jre/bin/java
-d64
-vmargs
-Xms2G
-Xmx22G
-XX:+UseConcMarkSweepGC
-XX:+CMSIncrementalMode

as well as profiling CPU only.

Is there another suggestion? Is it possible to start profiling after my workload starts?

2

Hi, grafikarbeit

In my understanding, you want use Visual Profiler to do some CPU Profiling, right?

If so, you should create a new session and then enable “Profile execution on the CPU”.

Then if no CUDA in your sample, you will only find result under “CPU Details” view.

3

Thank you for the reply, Veraj. Yes, I had already seen and tried that with no success.

CPU Profiling is not my only purpose; as I convert the app to CUDA I would be trying to profile kernels as well.

So far as I can see, any option I try for profiling, either CPU Profiling and/or CUDA profiling, the Java application does not work correctly because some of its dialogs do not work.

I eventually focused just on trying to get some basic kernels to run in the C library called by Java. I kept encountering non-obvious crashes, so after some time, I have decided to abandon this exercise under Linux Mint,
and switch to Windows 10 64-bit, where I am much more familiar with the environment and tools and I won’t encounter these sort of oddities, I hope. I should be able to port it over after a while; I’m in the middle of backing up before I put on the Windows OS.