add ability to launch string kernels

[SimonDanisch]

No description provided.

[SimonDanisch]

Allows to do this:

           copy_source = """
                __kernel void copy(
                    __global float *dest,
                    __global float *source
                ){
                int gid = get_global_id(0);
                dest[gid] = source[gid];
                }
            """
            source = rand(CLArray{Float32}, 1023, 11)
            dest = zeros(CLArray{Float32}, size(source))
            gpu_call(:copy => copy_source, dest, (dest, source))
            Array(dest) == Array(source)

Note, that the caching of the functor is not very nice, so for repeated calls, one might want to do
this part manually:

CLArrays.jl/src/compilation.jl

Line 12 in 37ed840

function _gpu_call(f, A::CLArray, args::Tuple, blocks_threads::Tuple{T, T}) where T <: NTuple{N, Integer} where N

[SimonDanisch]

@ranocha

[SimonDanisch]

@maleadt any idea whats up with this:

INFO: Testing CLArrays
ERROR: LoadError: CLError(code=-1001, CL_PLATFORM_NOT_FOUND_KHR)
Stacktrace:
 [1] macro expansion at /var/lib/buildbot/workers/julia/CLArrays-julia06-x86-64bit/depot/v0.6/OpenCL/src/macros.jl:6 [inlined]
 [2] platforms() at /var/lib/buildbot/workers/julia/CLArrays-julia06-x86-64bit/depot/v0.6/OpenCL/src/platform.jl:21
 [3] devices() at /var/lib/buildbot/workers/julia/CLArrays-julia06-x86-64bit/depot/v0.6/OpenCL/src/platform.jl:104
 [4] devices() at /var/lib/buildbot/workers/julia/CLArrays-julia06-x86-64bit/depot/v0.6/CLArrays/src/device.jl:6
 [5] anonymous at ./<missing>:?
 [6] include_from_node1(::String) at ./loading.jl:576
 [7] include(::String) at ./sysimg.jl:14
 [8] process_options(::Base.JLOptions) at ./client.jl:305
 [9] _start() at ./client.jl:371
while loading /var/lib/buildbot/workers/julia/CLArrays-julia06-x86-64bit/depot/v0.6/CLArrays/test/runtests.jl, in expression starting on line 4

[maleadt]

@SimonDanisch fixed

[SimonDanisch]

Thank you :)