Removed ceil ChunkedEllpack_impl.h

//       will be zero and make the assertion fail ( https://stackoverflow.com/questions/33273359/in-c-using-the-ceil-a-division-is-not-working ).

//       To fix this, typecast them to ( float ), instead of ( RealType )

       maxChunkInSlice = max( maxChunkInSlice,

                          ceil( roundUpDivision( rowLengths[ i ], this->rowToChunkMapping[ i ] ) );

                          roundUpDivision( rowLengths[ i ], this->rowToChunkMapping[ i ] );

   }

      TNL_ASSERT( maxChunkInSlice > 0,

              std::cerr << " maxChunkInSlice = " << maxChunkInSlice << std::endl );