Add functions for threads

src/LibHYPRE.jl

@@ -10,6 +10,15 @@ function HYPRE_Init()
     return HYPRE_Initialize()
 end
 
+# Threading utilities if built with OpenMP
+function HYPRE_NumThreads()
+    return @ccall libHYPRE.hypre_NumThreads()::HYPRE_Int
+end
+
+function HYPRE_SetNumThreads(nt::HYPRE_Int)
+    return @ccall libHYPRE.hypre_SetNumThreads(nt::HYPRE_Int)::Ptr{Cvoid}
+end
+
 # Add manual methods for some ::Function signatures where the library wants function
 # pointers. Instead of creating function pointers to the Julia wrappers we can just look
 # up the pointer in the library and pass that.