1Total number of fields: 3. 2Creating a 2-dimensional structured regular mesh of 5x5x5 in memory and creating a DM object. 3Setting field names to DM: 4 Field{0} = v1. 5 Field{1} = v2. 6 Field{2} = v3. 7Creating a global vector defined on DM and setting random data. 8Creating a global matrix defined on DM with the right block structure. 9