Hi, I am currently using fieldsplit and I am creating the fields using ISCreateGeneral.programming is being carried out in FORTRAN. I have a couple of questions regarding fieldsplit in parallel.
Do we need to create the index list of all the fields separately for each processor? For example, say I have 3 fields and the indices for field_0 is 0-99, field_1 is 100-299 and field_2 is 300-349. In case of 2 processors do I have to specify the indices for the first processor as field_0 is 0-99, field_1 is 100-174 and field_2 is null. On the second processor field_0 is null, field_1 is 175-299 and field_2 is 300-349. my second question is if the indices need to be listed separately how do you assign the null index list using ISCreateGeneral. Thanks, Sundar.
