BlockCyclicRange(const int extent, Dimension dim, const int blockSize)Creates a block-cyclically-distributed range of extent extent distributed cyclically over dimension dim with block-size blockSize. The constructed block-cyclic range is a template range. The number of blocks is
numBlocks = (extent + blockSize - 1) / blockSize
The kernel of the range is a simple cyclically-distributed template range with number of cycles given by
numCycles = (numBlocks + dim.size() - 1) / dim.size()
The extent of the kernel range is thus
numCycles * dim.size().
The detailed structure of a block-cyclic range can be discovered with the aid of the lev and ker inquiries.