Work around NEO not reporting MAX_GROUP_SIZE.

Author: maleadt

lib/level-zero/module.jl

@@ -237,7 +237,10 @@ function properties(kernel::ZeKernel)
     preferred_group_size_props_ref = Ref(ze_kernel_preferred_group_size_properties_t())
     link_extensions(props_ref, preferred_group_size_props_ref)
     if haskey(oneL0.extension_properties(kernel.mod.context.driver),
-              "ZE_extension_kernel_max_group_size_properties")
+              "ZE_extension_kernel_max_group_size_properties") ||
+       # intel/compute-runtime#733
+       (properties(kernel.mod.device).vendorId == 0x8086 &&
+        properties(kernel.mod.context.driver).driverVersion >= v"1.3.29138")
         # TODO: memoize
         max_group_size_props_ref = Ref(ze_kernel_max_group_size_properties_ext_t())
         link_extensions(preferred_group_size_props_ref, max_group_size_props_ref)

src/compiler/execution.jl

@@ -167,11 +167,11 @@ function launch_configuration(kernel::HostKernel{F,TT}) where {F,TT}
     # configurations, so roll our own version that behaves like CUDA's
     # occupancy API and assumes the kernel still does bounds checking.
 
-    # once the MAX_GROUP_SIZE extension is implemented, we can use it here
     kernel_props = oneL0.properties(kernel.fun)
     group_size = if kernel_props.maxGroupSize !== missing
         kernel_props.maxGroupSize
     else
+        # without the MAX_GROUP_SIZE extension, we need to be conservative
         dev = kernel.fun.mod.device
         compute_props = oneL0.compute_properties(dev)
         max_size = compute_props.maxTotalGroupSize