[Lustre-discuss] Lustre and memory-mapped I/O

[Nikita Danilov]

Huang, Eric writes:

Hello,

 > 
 > Does Lustre support memory mapped I/O and direct I/O? 

yes, it supports both. Can you run your application under strace to see
how exactly it fails to create a directory?

 > 
 > I am trying to run Nastran using Lustre but it always reported failure
 > to create a directory. Since Nastran does a lot of memory mapped I/O, I
 > was wondering if it was the cause. 
 > 
 > I guess a good question to ask is that does Lustre support all POSIX
 > file system operations?
 > 
 > Thanks a lot.
 > 
 > Eric

Nikita.