That may have more to do with mpich than myrinet. In any event, my applications run much faster with myrinet (upwards of 2x), I don't care that the cpus are pegged.
Running with IB may be great, but there isn't exactly a large set of commercial applications out there that support it. Not everybody runs in a research environment where you're writing your own code, or doing your own linking. You try getting a vendor to release libraries...
Uh, yes really. Escape velocity is just that, velocity. It's not a position, and isn't really referred to when dealing with multi-body problems. You're thinking of things like Lagrange Points.
Rutan make successful experimental planes, NOT successful commercial or production aircraft (and I don't count kit planes as either of those). When you limit yourself to experimental craft, some things get a lot easier.
You're not orbiting, you're hovering. However, as you increase altitude, you would start to have motion relative to the ground because you have to conserve angular momentum (assuming your propulsion system only acts up and down). Eventually, you would escape earth's gravity since at some very high altitude, escape velocity is 1 mph. At that point your speed relative to the earth's surface would be very close to the planet' rotational speed (ignoring many other factors), again conservation of angular momentum stuff.
I/O on x86 can be quite fast. I'm running a massive I/O job on x86 now and the machine is quite responsive. But this is server-class x86 hardware not cheap desktop stuff. The disks are U320 SCSI on 133MHz 64-bit PCI. Most people are only thinking in terms of IDE, which can't handle any amount of real work.
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Uh, yes really. Escape velocity is just that, velocity. It's not a position, and isn't really referred to when dealing with multi-body problems. You're thinking of things like Lagrange Points.
Rutan make successful experimental planes, NOT successful commercial or production aircraft (and I don't count kit planes as either of those). When you limit yourself to experimental craft, some things get a lot easier.
You're not orbiting, you're hovering. However, as you increase altitude, you would start to have motion relative to the ground because you have to conserve angular momentum (assuming your propulsion system only acts up and down). Eventually, you would escape earth's gravity since at some very high altitude, escape velocity is 1 mph. At that point your speed relative to the earth's surface would be very close to the planet' rotational speed (ignoring many other factors), again conservation of angular momentum stuff.
I/O on x86 can be quite fast. I'm running a massive I/O job on x86 now and the machine is quite responsive. But this is server-class x86 hardware not cheap desktop stuff. The disks are U320 SCSI on 133MHz 64-bit PCI. Most people are only thinking in terms of IDE, which can't handle any amount of real work.