Create Android activity file for Mali OpenCL Samples

Thanks Mr Tim for your reply

I have downloaded the ndk already and i will try with the hello-jni.

Another question- can i run the OpenCL <sample.cpp> file as it is using gcc in my laptop itself ?

I am having the OpenCL library installed from device so can i run as native application ?

P.S I tried it but it is asking for cl/CL.h header which i cant locate in my laptop.

Thks

Thanks Mr Tim for your reply

I have downloaded the ndk already and i will try with the hello-jni.

Another question- can i run the OpenCL <sample.cpp> file as it is using gcc in my laptop itself ?

I am having the OpenCL library installed from device so can i run as native application ?

P.S I tried it but it is asking for cl/CL.h header which i cant locate in my laptop.

Thks

Hi Aravind,

There is no reason in principle that you shouldn't be able to build and run the OpenCL samples on your laptop - all you need are suitable drivers and CL headers.  You would need to check the make of the GPU in your laptop and see if such a driver is available, or indeed whether there is a driver that will allow OpenCL to run on whatever CPU you are using.  This is all going to be dependent on the particular hardware specification of your laptop, and a question you would need to ask the manufacturers of the GPU or CPU.

Hope that helps,

Tim

Thanks  Tim for ur response.

I hv actually pulled the openCL library from the Mali T-628 gpu ( Odroid-xu3) and i hv installed in my laptop.But as ur saying my lap doesnt hv a gpu so trying to run the OpenCL code will not be a good idea as the very objective of OpenCL i.e better compute wont be achieved.

So if I want to run the cpp file in the Odroid-xu3 ( there are no problems of drivers here ) what should i do ?

Is it enough if i just transfer the file to the board and then run?

Thks

Aravind

Hi Aravind,

The libOpenCL.so from your Odroid is built for ARM and Android, so it is binary incompatible with your X86 Windows/Linux laptop, regardless of GPU.

Hth,

Chris

Thks Chris.

So if I want to run the cpp file in the Odroid-xu3 ( there are no problems of drivers here ) what should i do ?

Is it enough if i just transfer the file to the board and then run?

Thks

Aravind

You'll need to build a binary for your device using the NDK toolchains available, and then run that on the device. You won't be able to run the .cpp file without compiling it first and you won't be able to run any binary you've compiled with the host GCC toolchain either as this will be binary incompatible with the development platform.

Hth,

Chris

Thanks Chris.

ndk-build NDK_APP_APPLICATION_MK=<file> --> rebuild, using a specific Application.mk pointed to by the NDK_APP_APPLICATION_MK command-line variable.

-------------------

Application.mk:

APP_ABI := armeabi-v7a

APP_PLATFORM := android-19

APP_STL := gnustl_static

APP_CPPFLAGS += -fexceptions -frtti.

------------------

Will this work?

Alternatively,I boot Odroid-xu3 in Ubuntu and then install Mali SDK and compile the cpp sources. Will it run?