Update cheatsheet.rst

Removed deprecated command
Changed from alapka enqueue to alpaka exec
Added entries to get
- pitches
- mdspan
- kernelFunctionAttributes
- NDIndex

docs/source/basic/cheatsheet.rst

@@ -122,11 +122,6 @@ Allocate a buffer in host memory
      using BufHost = alpaka::Buf<DevHost, DataType, Dim, Idx>;
      BufHost bufHost = allocBuf<DataType, Idx>(devHost, extent);
 
-(Optional, affects CPU – GPU memory copies) Prepare it for asynchronous memory copies
-  .. code-block:: c++
-
-     prepareForAsyncCopy(bufHost);
-
 Create a view to host memory represented by a pointer
   .. code-block:: c++
 
@@ -154,6 +149,18 @@ Get a raw pointer to a buffer or view initialization, etc.
      DataType* raw = view::getPtrNative(bufHost);
      DataType* rawViewPtr = view::getPtrNative(hostView);
 
+Get the pitches (memory in bytes to the next element in the buffer along the pitch dimension) of a buffer
+  .. code-block:: c++
+
+     auto pitchBufAcc = alpaka::getPitchesInBytes(bufAcc)
+     auto pitchViewAcc = alpaka::getPitchesInBytes(viewAcc)
+
+Get a mdspan to a buffer or view initialization, etc.
+  .. code-block:: c++
+
+     auto bufMdSpan = alpaka::experimental::getMdSpan(bufAcc)
+     auto viewMdSpan = alpaka::experimental::getMdSpan(viewAcc)
+
 Allocate a buffer in device memory
   .. code-block:: c++
 
@@ -216,18 +223,24 @@ Manually set a kernel launch configuration
        threadsPerBlock,
        elementsPerThread};
 
-Instantiate a kernel and create a task that will run it (does not launch it yet)
+
+Instantiate a kernel (does not launch it yet)
   .. code-block:: c++
 
      Kernel kernel{argumentsForConstructor};
-     auto taskRunKernel = createTaskKernel<Acc>(workDiv, kernel, parameters);
 
 acc parameter of the kernel is provided automatically, does not need to be specified here
 
+Get information about the kernel from the device (size, maxThreadsPerBlock, sharedMemSize, registers, etc.)
+  .. code-block:: c++
+
+     auto kernelFunctionAttributes = alpaka::getFunctionAttributes<Acc>(devAcc, kernel, parameters...);
+
+
 Put the kernel for execution
   .. code-block:: c++
 
-     enqueue(queue, taskRunKernel);
+     exec(queue, workDiv, kernel, parameters...);
 
 Kernel Implementation
 ---------------------
@@ -259,6 +272,12 @@ Access components of and destructure multi-dimensional indices and extents
 Linearize multi-dimensional vectors
   .. code-block:: c++
 
+     auto linearIdx = mapIdx<1u>(idxND, extentND);
+
+More generally, index multi-dimensional vectors with a different dimensionality
+  .. code-block:: c++
+
+     auto idxND = alpaka::mapIdx<N>(idxMD, extentMD);
      auto linearIdx = mapIdx<1u>(idx, extent);
 
 .. raw:: pdf