Compare the file-per-process and shared-file access patterns. Pros and cons.
File-Per-Process:
* One of the main parallel procedures individuals use for I/O is for each parallel procedure to write to its own file.
* This is a straightforward plan to execute and see however has the weakness that, toward the finish of the estimation, the information is spread crosswise over a wide range of files and may hence be hard to use for further examination without an information recreation stage.
* Every application task generates a separate file, and writes to only that file.
* Avoids from lock content on document frameworks that utilizes locks to keep up POSIX consistency
* Applications which are running today approximately creates around 100,000 tasks.
* It is not possible to restart application with various number of tasks.
Shared-File-Access:
* The issue with having numerous customers performing I/O in the meantime is that, to counteract them conflicting with one another, the I/O library may need to adopt a moderate strategy.
* For instance, a document might be bolted while every customer is getting to it which implies that I/O is successfully serialized and execution might be poor.
* In any case, in the event that I/O is done by and large where the library realizes that all customers are doing I/O in the meantime, at that point peruses and composes can be expressly organized to stay away from conflicts.
* It is just through aggregate I/O that the full data transfer capacity of the file can be acknowledged while getting to a single file.
* All application tasks will write to single file that was earlier created.
* Increases usability: only one file to keep of by application
* Can create lock content on and performance on certain systems
Compare the file-per-process and shared-file access patterns. Pros and cons.
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