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StationQ / Liquid

The Language-Integrated Quantum Operations (LIQUi|>) Simulator
http://StationQ.github.io/Liquid
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[CLOSED] what does the output log show? #17

Closed dbwz8 closed 8 years ago

dbwz8 commented 8 years ago

Issue by rumschuettel Wednesday Mar 16, 2016 at 22:15 GMT Originally opened as https://github.com/msr-quarc/Liquid/issues/17

Not a bug, but out of curiosity: 0:0015.1/Time: 191 [180 to 240] MB= 61 cache(22973,16) GC:1478 What are the numbers after cache? I assume the last line is the garbage collected gates, but I can't see what the other numbers mean: I'm not caching gates, but yet the number is increasing constantly. Disabling the cache by setting CacheDisable to true does not change the output.

Hope someone can help clarifying that :-). Thanks & best, rumschuettel

dbwz8 commented 8 years ago

Comment by dbwz8 Wednesday Mar 16, 2016 at 22:42 GMT

The first number is how many gate hits there were in the cache. Note that several built-in gates are automatically cached. The second number is the number of gates that were not found in the cache. This would be the first time the built-in gates were called... so there are 16 of them that are cached. Calling CacheDisable prevents new gates from being added to the cache (it does not turn the cache off). The only reason to do this is if you have gates with the same name that do different things (causing a cache conflict). The last number is the number of Generation 0 and Generation 1 Garbage Collections that have been called since the last time it was reported.

dbwz8 commented 8 years ago

Comment by rumschuettel Wednesday Mar 16, 2016 at 23:50 GMT

Great, super helpful! Thanks Dave!

2016-03-16 22:42 GMT+00:00 Dave Wecker notifications@github.com:

The first number is how many gate hits there were in the cache. Note that several built-in gates are automatically cached. The second number is the number of gates that were not found in the cache. This would be the first time the built-in gates were called... so there are 16 of them that are cached. Calling CacheDisable prevents new gates from being added to the cache (it does not turn the cache off). The only reason to do this is if you have gates with the same name that do different things (causing a cache conflict). The last number is the number of Generation 0 and Generation 1 Garbage Collections that have been called since the last time it was reported.

— You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub https://github.com/msr-quarc/Liquid/issues/17#issuecomment-197589705

dbwz8 commented 8 years ago

Comment by dbwz8 Thursday Mar 17, 2016 at 01:55 GMT

(answered)