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Found 1 result

  1. kaffee, junge
    Hi all, I am running sims with houdini engine on amazon aws ec2 instances. Using Thinkbox Deadline and Usage Based Licensing. It does work, but there is a ~75% chance, the sim won’t start and throw a Segmentation Fault immediately after a message about OpenCL: 2019-11-15 14:26:17: 0: STDOUT: Rendering frame 1 to 240 2019-11-15 14:26:17: 0: STDOUT: OUT_whitewater at time 0 2019-11-15 14:26:17: 0: STDOUT: Bytes sent: 0 2019-11-15 14:26:17: 0: STDOUT: Bytes received: 0 2019-11-15 14:26:17: 0: STDOUT: Seconds taken: 0 2019-11-15 14:26:17: 0: STDOUT: ALF_PROGRESS 0% 2019-11-15 14:26:18: 0: STDOUT: No OpenCL platform has the specified device type (HOUDINI_OCL_DEVICETYPE): GPU. Falling back to built-in CPU OpenCL driver. 2019-11-15 14:26:18: 0: STDOUT: 8395: Fatal error: Segmentation fault (sent by pid 0) 2019-11-15 14:26:18: 0: STDOUT: -- TRACEBACK BEGIN -- 2019-11-15 14:26:18: 0: STDOUT: Traceback from hython 17.5.360 (Compiled on linux-x86_64-gcc6.3): 2019-11-15 14:26:18: 0: STDOUT: stackTrace() <libHoudiniUT.so> 2019-11-15 14:26:18: 0: STDOUT: signalCallback(UTsignalHandlerArg) <libHoudiniUT.so> 2019-11-15 14:26:18: 0: STDOUT: UT_Signal::UT_ComboSignalHandler::operator()(int, siginfo_t*, void*) const <libHoudiniUT.so> 2019-11-15 14:26:18: 0: STDOUT: UT_Signal::processSignal(int, siginfo_t*, void*) <libHoudiniUT.so> 2019-11-15 14:26:18: 0: STDOUT: __funlockfile <libpthread.so.0> 2019-11-15 14:26:18: 0: STDOUT: -- TRACEBACK END -- 2019-11-15 14:26:19: 0: INFO: Process exit code: 139 2019-11-15 14:26:19: 0: INFO: Sending EndTaskRequest to S3BackedCacheClient. 2019-11-15 14:26:19: 0: DEBUG: Request: 2019-11-15 14:26:19: 0: DEBUG: JobId: 5dceb41cfc813313c877a56e 2019-11-15 14:26:19: 0: Done executing plugin command of type 'Render Task Since I dont want to run this on a GPU instance, installing Nvidia OpenCL drivers wouldnt do much. So my guess is, it has something to do with the CPU OpenCL driver. The instance used here was c5.18xlarge. Here is some info on the CPUs I found on AWS for the C5 Instance type: I also asked this over at the Thinkbox Forums, but I think it is more of a houdini issue. Thanks! EDIT1: I added HOUDINI_OCL_DEVICETYPE=CPU to houdini.env. This gets rid of the Warning: No OpenCL Platform... The segmentation Fault remains though. Here is the full LOG
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