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Multiprocessing Snippets

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Python/MultiProcessing

34 files changed

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`‎Python/MultiProcessing/multiprocessing-1.svg`

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`‎Python/MultiProcessing/multiprocessing-2.svg`

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`‎Python/MultiProcessing/multiprocessing-demo.py`

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	`1`	`+importconcurrent.futures`
	`2`	`+importtime`
	`3`	`+`
	`4`	`+start=time.perf_counter()`
	`5`	`+`
	`6`	`+`
	`7`	`+defdo_something(seconds):`
	`8`	`+print(f'Sleeping{seconds} second(s)...')`
	`9`	`+time.sleep(seconds)`
	`10`	`+returnf'Done Sleeping...{seconds}'`
	`11`	`+`
	`12`	`+`
	`13`	`+withconcurrent.futures.ProcessPoolExecutor()asexecutor:`
	`14`	`+secs= [5,4,3,2,1]`
	`15`	`+results=executor.map(do_something,secs)`
	`16`	`+`
	`17`	`+# for result in results:`
	`18`	`+# print(result)`
	`19`	`+`
	`20`	`+finish=time.perf_counter()`
	`21`	`+`
	`22`	`+print(f'Finished in{round(finish-start,2)} second(s)')`

`‎Python/MultiProcessing/photo-1493976040374-85c8e12f0c0e.jpg`

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`‎Python/MultiProcessing/photo-1504198453319-5ce911bafcde.jpg`

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`‎Python/MultiProcessing/photo-1507143550189-fed454f93097.jpg`

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`‎Python/MultiProcessing/photo-1513938709626-033611b8cc03.jpg`

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`‎Python/MultiProcessing/photo-1516117172878-fd2c41f4a759.jpg`

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`‎Python/MultiProcessing/photo-1541698444083-023c97d3f4b6.jpg`

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`‎Python/MultiProcessing/photo-1549692520-acc6669e2f0c.jpg`

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`‎Python/MultiProcessing/photo-1564135624576-c5c88640f235.jpg`

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`‎Python/MultiProcessing/process-images.py`

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	`1`	`+`
	`2`	`+importtime`
	`3`	`+importconcurrent.futures`
	`4`	`+fromPILimportImage,ImageFilter`
	`5`	`+`
	`6`	`+img_names= [`
	`7`	`+'photo-1516117172878-fd2c41f4a759.jpg',`
	`8`	`+'photo-1532009324734-20a7a5813719.jpg',`
	`9`	`+'photo-1524429656589-6633a470097c.jpg',`
	`10`	`+'photo-1530224264768-7ff8c1789d79.jpg',`
	`11`	`+'photo-1564135624576-c5c88640f235.jpg',`
	`12`	`+'photo-1541698444083-023c97d3f4b6.jpg',`
	`13`	`+'photo-1522364723953-452d3431c267.jpg',`
	`14`	`+'photo-1513938709626-033611b8cc03.jpg',`
	`15`	`+'photo-1507143550189-fed454f93097.jpg',`
	`16`	`+'photo-1493976040374-85c8e12f0c0e.jpg',`
	`17`	`+'photo-1504198453319-5ce911bafcde.jpg',`
	`18`	`+'photo-1530122037265-a5f1f91d3b99.jpg',`
	`19`	`+'photo-1516972810927-80185027ca84.jpg',`
	`20`	`+'photo-1550439062-609e1531270e.jpg',`
	`21`	`+'photo-1549692520-acc6669e2f0c.jpg'`
	`22`	`+]`
	`23`	`+`
	`24`	`+t1=time.perf_counter()`
	`25`	`+`
	`26`	`+size= (1200,1200)`
	`27`	`+`
	`28`	`+`
	`29`	`+defprocess_image(img_name):`
	`30`	`+img=Image.open(img_name)`
	`31`	`+`
	`32`	`+img=img.filter(ImageFilter.GaussianBlur(15))`
	`33`	`+`
	`34`	`+img.thumbnail(size)`
	`35`	`+img.save(f'processed/{img_name}')`
	`36`	`+print(f'{img_name} was processed...')`
	`37`	`+`
	`38`	`+`
	`39`	`+withconcurrent.futures.ProcessPoolExecutor()asexecutor:`
	`40`	`+executor.map(process_image,img_names)`
	`41`	`+`
	`42`	`+`
	`43`	`+t2=time.perf_counter()`
	`44`	`+`
	`45`	`+print(f'Finished in{t2-t1} seconds')`