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HelloJOCL compiles but (prior to fix below) gives the runtime error:
Can't load library: /home/[...]/jogamp/natives/linux-amd64//libgluegen-rt.so Not surprising, since I've followed the jogamp build instructions and this has only given me the folders: jogamp/gluegen, jogamp/jocl, jogamp/jogl . So I created the folder jogamp/natives/linux-amd64/ and copied in libgluegen-rt.so from /gluegen/build/obj/libgluegen-rt.so, and it runs fine. But I am worried I have set myself up for problems down the road. Was this the right thing to do? |
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This post was updated on Sep 29, 2015; 9:26pm.
"normally" you include gluegen-rt.jar and jocl.jar on the classpath
gluegen-rt will then look for its natives inside the jar gluegen-rt-natives-linux-amd64.jar next to the gluegen-rt.jar and jocl.jar will look for its natives inside jocl-natives-linux-amd64.jar next to the jocl.jar if that fail then it will try load the natives from the natives/linux-amd64 inside the main jar and if that also fail then it will try load the natives from the natives/linux-amd64/ folder on the filesystem. example 1 if you have built gluegen jocl and jocl-demos manually then the following command line will launch HelloJOCL java -cp jocl-demos/build/jar/jocl-demos.jar:gluegen/build/gluegen-rt.jar:jocl/build/jar/jocl.jar com/jogamp/opencl/demos/hellojocl/HelloJOCL example 2 if you use the pre-build jogamp release then the following command lines will launch HelloJOCL. This example uses the "slim" jar layout. wget http://jogamp.org/deployment/archive/master/gluegen_896-joal_622-jogl_1451-jocl_1094-signed/archive/jogamp-all-platforms.7z wget http://jogamp.org/deployment/archive/master/gluegen_896-joal_622-jogl_1451-jocl_1094-signed/archive/jocl-demos.7z 7z x jogamp-all-platforms.7z 7z x jocl-demos.7z java -cp jocl-demos/jar/jocl-demos.jar:jogamp-all-platforms/jar/gluegen-rt.jar:jogamp-all-platforms/jar/jocl.jar com/jogamp/opencl/demos/hellojocl/HelloJOCL example 3 if you use the pre-build jogamp release then the following command lines will launch HelloJOCL. This example uses the "fat" jar layout. The jogamp-fat.jar contains all the natives for all jogamp modules and platforms we support. wget http://jogamp.org/deployment/archive/master/gluegen_896-joal_622-jogl_1451-jocl_1094-signed/fat/jogamp-fat.jar wget http://jogamp.org/deployment/archive/master/gluegen_896-joal_622-jogl_1451-jocl_1094-signed/archive/jocl-demos.7z 7z x jocl-demos.7z java -cp jocl-demos/jar/jocl-demos.jar:jogamp-fat.jar com/jogamp/opencl/demos/hellojocl/HelloJOCL |
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Thanks, issue solved.
I had gluegen.jar as well as gluegen-rt.jar on the classpath and that was why it didn't work. When I took gluegen.jar out of the classpath, it worked. Also it worked if I had both of those, and also included jocl-natives-linux-amd64.jar . But it did not work when I had gluegen.jar and gluegen-rt.jar without the third. That was the issue. (I built from source so used option 1.) |
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