Re: Linux and system area networks

2001-06-28 Thread Bernd Eckenfels
In article <[EMAIL PROTECTED]> you wrote: > We seem to have come full circle. My original question was about > providing a better way for sockets applications to take advantage of > SAN hardware. W2K Datacenter introduces "Winsock Direct," which will > bypass the protocol stack when appropriate.

Re: Linux and system area networks

2001-06-28 Thread Roland Dreier
Pekka> If you used sockets, I believe the normal way to use SAN Pekka> boards is to just make them look like network cards with a Pekka> large MTU Sure it works, but it's not very efficient :) (I Pekka> have to admit I've not played with that kind of toys at Pekka> all, though)

Re: Linux and system area networks

2001-06-28 Thread Pekka Pietikainen
On Thu, Jun 28, 2001 at 07:28:20PM +0200, Bogdan Costescu wrote: > On Wed, 27 Jun 2001, Pekka Pietikainen wrote: > > I'm sorry, but I don't understand your reference to MPI here. MPI is a > high-level API; MPI can run on top of whatever communication features > exists: TCP/IP, shared memory, VI,

Re: Linux and system area networks

2001-06-28 Thread Bogdan Costescu
On Wed, 27 Jun 2001, Pekka Pietikainen wrote: > Providing a wrapper library for use with Infiniband and the current > SAN boards like WSD would probably be a useful exercise, but to really get > good performance (especially latency-wise) you probably want to use > something like MPI. For many app

Re: Linux and system area networks

2001-06-27 Thread Pekka Pietikainen
On Tue, Jun 26, 2001 at 07:36:30AM -0500, Jesse Pollard wrote: > > I think you misunderstood the point. Microsoft is providing this WSD > > DLL as a standard part of W2K now. This means that hardware vendors > > just have to write a SAN service provider, and all Winsock-using > > applications be

Re: Linux and system area networks

2001-06-26 Thread Jesse Pollard
- Received message begins Here - > > > "Pete" == Pete Zaitcev <[EMAIL PROTECTED]> writes: > > Roland> The rough idea is that WSD is a new user space library > Roland> that looks at sockets calls and decides if they have to go > Roland> through the usual kernel

Re: Linux and system area networks

2001-06-25 Thread Alan Cox
> OK, how about an Infiniband network with a TCP/IP gateway at the edge? > Have we thought about how Linux servers should use the gateway to talk > to internet hosts? Surely there's no point in running TCP/IP inside > the Infiniband network, so there needs to be some concept of "socket > over Inf

Re: Linux and system area networks

2001-06-25 Thread Alan Cox
> a properly written host based stack works much better in > the face of a changing environment: Faster CPUs, new CPUs > (IA-64), new network protocols (ECN). Besides, it is easy > to "accelerate" a bad network stack, but try to outdo a > well done stack. Putting the stack partly in user spacd ca

Re: Linux and system area networks

2001-06-25 Thread Roland Dreier
> "Pete" == Pete Zaitcev <[EMAIL PROTECTED]> writes: Roland> The rough idea is that WSD is a new user space library Roland> that looks at sockets calls and decides if they have to go Roland> through the usual kernel network stack, or if they can be Roland> handed off to a "SAN

Re: Linux and system area networks

2001-06-25 Thread Pete Zaitcev
> I'd like to find out if anyone has thought about how Linux will handle > some of the new network technologies people are starting to push. > Specifically I'm talking about "System Area Networks," that is, things > like Infiniband, as well as TCP/IP offload. Infiniband is doing relatively well,