Cannot compile `enqueue_kernel` on opencl 2.1 NEO device - c++

Question

I have the following code on the device Intel(R) Gen9 HD Graphics NEO -- OpenCL 2.1 NEO :
__kernel void update(
const __global uint* positions,
const __global float3* offsets,
const int size,
__global int* cost
) {
int global_id = get_global_id(0);
if (global_id >= size) {
return;
}
int3 update_index = position_from_index(grid_centroid_positions[global_id], SIZE) -
offset_grid;
ndrange_t ndrange = ndrange_3d(size, size, size);
enqueue_kernel(get_default_queue(), ndrange,
^{update_surrouding_cells(offsets, global_id, update_index, update_edge_size, size, cost)});
}
But i get the following compiler error:
6:158:5: error: use of undeclared identifier 'ndrange_t'
ndrange_t ndrange = ndrange_3d(size, size, size);
^
6:161:5: error: implicit declaration of function 'enqueue_kernel' is invalid in OpenCL
enqueue_kernel(get_default_queue(), ndrange,
^
6:161:20: error: implicit declaration of function 'get_default_queue' is invalid in OpenCL
enqueue_kernel(get_default_queue(), ndrange,
^
6:162:163: error: expected ';' after expression
^{update_surrouding_cells(offsets, global_id, update_index, update_edge_size, size, cost)});
^
;
6:161:41: error: use of undeclared identifier 'ndrange'
enqueue_kernel(get_default_queue(), ndrange,
Compilation options are as follows:
-I "/home/development/cl" -g
-D SIZE=256
The device supports opencl 2.1, yet when compiling it seems none of the things for enqueue_kernel exist. Do i need a special extension or something? I am reading the spec here, but it doesn't seem to say anything about actually compiling the examples with dynamic parallelism.

Answer 1

When compiling, it is not just the version of the device that is important. The compiled version of cl code is passed into the compilation options. AKA the compilation options when compiling the opencl program (kernel code) should include:
-cl-std=CL2.0
Or the specific standard that you are looking for.