New Features in SCore 3.3.2
- Beta version of PM/Myrinet for Myrinet 2000 with serial and fiber
links(M3S-PCI64B and M3F-PCI64B)
Reliability of serial and optical
network versions of Myrinet 2000 is worse than SAN version of Myrinet
2000, one CRC error may occur in 1 hour message transfer. So a
reliable protocol is implemented to PM/Myrinet. The network type of
the reliable version of PM/Myrinet is myrinet2k, and the firmware for
myrinet2k is lanaiM2k.mcp which is different from that of myrinet
(lanai.mcp).
This reliable protocol is beta version. So, some
limitation exists.
- Zero-copy is not guaranteed (under development).
- This verion may not endure against much packet error such as over
10 times CRC error or packet losses within 1 second.
If you are using Myrinet 2000 with SAN network, you should use myrinet
network type instead of myrinet2k network type.
Bugs Fixed in SCore 3.3.2
- PM/Ethernet
Some bugs of pmRead and pmWrite were fixed.
So, SCASH on PM/Ethernet works properly.
- SCASH
A scash_barrier() bug is fixed.
SCASH new implementaion for SMP cluster is released.
- SCore-D
SCore-D is more stable and robust.
- Checkpoint
Checkpoint function works on SMP clusters and with Zero-Copy PM/Myrinet
communication.