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Salvatore Filippone
2007-03-16 14:48:58 +00:00
parent 703c80f892
commit 3cd8e0722d
1 changed files with 15 additions and 10 deletions
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base/serial/README.serial
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@@ -32,28 +32,33 @@ How do you add a new storage format? Here is your checklist.
the model. You may or may not be able to do it "in place";
ipcoo2csr & friends do just that; if you can, please add it because
it may come in handy.
5. You have to be able to convert it back to COOrdinate. This is
5. If you need to sort entries, it usually better to use imsrx than
isrx. This is because coefficients lists are likely to contain
multiple ordered sublists ("runs"), and the merge sort algorithm
implemented in imsrx is capable of taking advantage of them,
whereas the isrx quicksort cannot.
6. You have to be able to convert it back to COOrdinate. This is
usually not hard, because the code that does the MV multiply is
already (maybe implicitly) walking through the coefficients while
keeping track of both row and column index, thus it suffices to
copy them as you meet them, and then call psb_fixcoo (which sorts
and compacts the output) on the result.
6. You have to embed the MV and SV codes in the infrastructure; this
7. You have to embed the MV and SV codes in the infrastructure; this
is done first in the xSWMM and xSWSM routines that do a select on
the FIDA value. Below this level you're free to do as you please.
7. You have to extend the output capability of psb_Xcsprt. Again this
8. You have to extend the output capability of psb_Xcsprt. Again this
is easy for the same reasons as in 4.
8. You have to extend psb_Xcsrws for DIAG preconditioner.
9. Provide an UPDATE functionality, and add it to psb_update_mod;
9. You have to extend psb_Xcsrws for DIAG preconditioner.
10. Provide an UPDATE functionality, and add it to psb_update_mod;
currently JAD is out of this.
10. You have to provide the query facilities used in PSB_XSPINFO
11. You have to provide the query facilities used in PSB_XSPINFO
(included in base/modules/psb_spmat_type).
11. You have to provide the functionality to extract a block of
12. You have to provide the functionality to extract a block of
rows. This is used in the GETBLK/GETROW/CLIP chain (TO BE
REVISED). GETROW is (all that is) used by the ILU factorization.
12. You have to provide the GETDIAG functionality.
13. You have to provide the functionality to NEIGH.
13. You have to provide the GETDIAG functionality.
14. You have to provide the functionality to NEIGH.
WATCH OUT: THIS COULD BE CHANGED TO USE GETROW!!!!
14. RWEXTD: what do we do here? Should we switch to/from COO?????
15. RWEXTD: what do we do here? Should we switch to/from COO?????
Is this complete? I sure hope so....