Difference between revisions of "BOINC Terminology: F"
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| − | Feeder | + | '''Feeder''' - The feeder streamlines the scheduler's database access. It maintains a shared-memory segment containing 1) static database tables such as applications and application versions, and 2) a fixed-size cache of unsent result/workunit pairs. The scheduler finds results that can be sent to a particular client by scanning this memory segment, rather than by accessing the database. A semaphore synchronizes access to the shared-memory segment. To minimize contention for this semaphore, a scheduler can mark a cache entry as 'busy' (and release the semaphore) while it reads the result from the database (to verify that it is still unsent). |
| − | + | '''File Deleter''' - The file deleter deletes input and output files when they are no longer needed. | |
| − | + | '''Firewall''' - A firewall is a logical barrier designed to prevent unauthorized or unwanted communications between sections of a computer network. This can be a hardware firewall (inside the modem, router or bridge) or a software firewall. | |
| − | + | '''FLOP(S)''' - In computing, FLOPS (or flops) is an acronym meaning FLoating point Operations Per Second. This is used as a measure of a computer's performance, especially in fields of scientific calculations that make heavy use of floating point calculations; similar to instructions per second. | |
| − | + | One should speak in the singular of a FLOPS and not of a FLOP, although the latter is frequently encountered. The final S stands for second and does not indicate a plural. Alternatively, the singular FLOP (or flop) is used as an abbreviation for "FLoating-point OPeration", and a flop count is a count of these operations (e.g., required by a given algorithm or computer program). In this context, "flops" is simply the plural rather than a rate. | |
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Revision as of 20:57, 30 June 2016
Feeder - The feeder streamlines the scheduler's database access. It maintains a shared-memory segment containing 1) static database tables such as applications and application versions, and 2) a fixed-size cache of unsent result/workunit pairs. The scheduler finds results that can be sent to a particular client by scanning this memory segment, rather than by accessing the database. A semaphore synchronizes access to the shared-memory segment. To minimize contention for this semaphore, a scheduler can mark a cache entry as 'busy' (and release the semaphore) while it reads the result from the database (to verify that it is still unsent).
File Deleter - The file deleter deletes input and output files when they are no longer needed.
Firewall - A firewall is a logical barrier designed to prevent unauthorized or unwanted communications between sections of a computer network. This can be a hardware firewall (inside the modem, router or bridge) or a software firewall.
FLOP(S) - In computing, FLOPS (or flops) is an acronym meaning FLoating point Operations Per Second. This is used as a measure of a computer's performance, especially in fields of scientific calculations that make heavy use of floating point calculations; similar to instructions per second.
One should speak in the singular of a FLOPS and not of a FLOP, although the latter is frequently encountered. The final S stands for second and does not indicate a plural. Alternatively, the singular FLOP (or flop) is used as an abbreviation for "FLoating-point OPeration", and a flop count is a count of these operations (e.g., required by a given algorithm or computer program). In this context, "flops" is simply the plural rather than a rate.
| Jorden | 30 | 1 | 19:38:40 | 2007-01-25 | 85536 | 1 | 120 | 2007-01-25 19:38:40 | 2007-01-25 19:38:40
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