MSTAT(3PVM)

💖 MSTAT — the pvm_mstat tea 💖

okay bestie, so this is a page from the PVM Version 3.4 manual, and it's all about pvm_mstat — one lil function that tells you if a host in your virtual machine is doing fine or being a whole mess. no cap. let's get into it ✨

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🌸 NAME 🌸

pvm_mstat — returns the status of a host in the virtual machine. that's it. that's the girl. 💅

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🦋 SYNOPSIS 🦋

C:

int mstat = pvm_mstat( char *host )

Fortran:

call pvmfmstat( host, mstat )

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🎀 PARAMETERS 🎀

• host — a character string holding the host name. literally just the name of the computer you're asking about, bestie 🫶
• mstat — an integer that comes back with the machine status. here's the vibe check translation:
  • PvmOk — host is OK. slay, she's thriving 👑
  • PvmNoHost — host is not in virtual machine. not invited to the party 💀
  • PvmHostFail — host is unreachable (and thus possibly failed). ghosted you fr fr 😭

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✨ DESCRIPTION ✨

so pvm_mstat returns the status mstat of the computer named host, specifically with respect to running PVM processes. it's giving "are you okay? answer me." energy.

you use this routine to figure out if a particular host has failed, and whether the virtual machine needs to be reconfigured. like, if one of your girls stops replying, this is how you find out. 🙈

also important, bestie: the function pvm_notify() can also be used to notify the caller that a host has failed. two ways to get the same gossip, iykyk. 🌈

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🌟 EXAMPLES 🌟

C:

mstat = pvm_mstat( "msr.ornl.gov" );

Fortran:

CALL PVMFMSTAT( 'msr.ornl.gov', MSTAT )

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💀 ERRORS 💀

these error conditions can be returned by pvm_mstat:

• PvmSysErr — pvmd not responding. the daemon is not texting back, red flag 🚩
• PvmNoHost — giving a host name not in the virtual machine. who even is she?? 🍓
• PvmHostFail — host is unreachable (and thus possibly failed). gone, unreachable, probably asleep 😭

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🔥 SEE ALSO 🔥

• pvm_notify(3PVM)
• pvm_config(3PVM)

go read those too, bestie, they're part of the same friend group 🧚

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and that's the whole page!! this iconic lil manual page came from PVM Version 3.4, dated 30 August, 1993 — yes she's vintage, yes she still ate. periodt. 💜✨