[Openmp-commits] [PATCH] D44260: [OpenMP][libomptarget] Add global memory data sharing support for master-worker sharing.

Gheorghe-Teodor Bercea via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Mon Mar 12 07:57:49 PDT 2018

gtbercea added inline comments.

Comment at: libomptarget/deviceRTLs/nvptx/src/omptarget-nvptx.h:99-100
+  void **args;
+  // starts off as MAX_SHARED_ARGS but can increase in size.
+  uint32_t nArgs;
grokos wrote:
> gtbercea wrote:
> > grokos wrote:
> > > `Init()` is never called throughout the code, so `nArgs` is never initialized to `MAX_SHARED_ARGS`. Add a constructor to this class which will call `Init()`.
> > Added the call in the stack initialization function.
> No, that's not a good idea. Initialization of the class members should be handled automatically via a constructor. If someone ever wants to reuse this class without having a constructor then they will need to keep in mind that `Init()` must be called explicitly - not a good style.
Since this class is going to be instantiated as a __device__ __shared__ object, dynamic initialization is not supported. In general, it is not supported for __device__, __constant__ and __shared__ variables. The suggested solution is to have an empty or no constructor at all and explicitly handle initialization like it is being done in the Init() method.

  rOMP OpenMP


More information about the Openmp-commits mailing list