[Beowulf] OS for 64 bit AMD
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Mark Hahn hahn at physics.mcmaster.caSun Apr 3 16:30:55 PDT 2005
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this is utterly pointless, since we seem to disagree on axioms: correct code conforms to the standard; it is buggy if it depends on undefined (outside-the-standard) behavior. the platform is the ABI, not the distribution. if you believe that the ABI doesn't cover enough, talk to the organization that manages it. productionworthiness (PW) is behavioral stability, not some vendor's assertion about "support". there is no data to suggest that a "supported" configuration is actually more stable - support is a matter of CYA and risk aversion. (not the actual risk; PW is the actual risk (well, inverse of it).) Fedora has normal release management, with pre-release testing as well as post-release updates. the pre-release testing is also known as "beta-testing". -- the existence of commercial products which specify RH-whatever vX.Y does not magically turn FC into a beta-test. if you redefine words that way, you might as well call all of SunOS a beta for Solaris. the customer needs to evaluate how fragile a commercial product is: how well it conforms to the ABI. NVidia is a great example of an attractive product which is inherently fragile since NVidia chooses to hide trade secrets in a binary-only, kernel-mode driver which (by definition and example) depends on undefined behavior. VMWare is another good (flawed) example. "supported configuration" is nothing more or less than a way to "download" support costs to the platform vendor (PV). it's a lever, acting on the customer as a pivot, to force the PV to avoid changes of any sort, since its impossible to tell what internals the proprietary product depends on. similarly, SOP in the Fibrechannel world is to provide only negative definitions of support (nothing but HP disks in HP SANs.) this can be seen as a flaw in standard-defining, since Ethernet provides a fairly decent counterexample where interoperability is the norm because products need to conform, not "qualify".
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