Cookbook

Short answers to "how do I ...?". Each recipe shows the code and its real output; the reference has the details. The programs are in docs/examples/src: one per page, the recipe chosen by the command line argument.

Page	Recipes
Device memory	custom bounds and an initial value, other kinds, resizing, allocate-and-copy keeping the bounds, transposed copies, counting the allocations
Kernels	nested loops, reductions, an iterative solver with swapped buffers, kernels in procedures, mapped arrays in procedures
MPI	one device per rank, a global sum of device results, a halo exchange
Debugging	where the run happens, leaks, double frees, a wrong dev_id, making misuse fatal