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What is causing the `external pointer is not valid` error in `parallel::parSapply`?

Unraveling the External Pointer is Not Valid Error in Rs parallel par Sapply Parallel processing in R facilitated by the parallel package can dramatically speed

2 min read 05-10-2024 56
What is causing the `external pointer is not valid` error in `parallel::parSapply`?
What is causing the `external pointer is not valid` error in `parallel::parSapply`?

I get an error when using {future} and {furrr} functions within a Golem Shiny App, what does it come from?

Unlocking the Power of Futures Troubleshooting future and furrr in Golem Shiny Apps Golem a powerful framework for building scalable and interactive web applica

3 min read 05-10-2024 57
I get an error when using {future} and {furrr} functions within a Golem Shiny App, what does it come from?
I get an error when using {future} and {furrr} functions within a Golem Shiny App, what does it come from?

Error in unserialize(node$con) : MultisessionFuture (future_lapply-8) failed

Understanding and Troubleshooting the Error in unserialize node con Multisession Future future lapply 8 failed in R When working with parallel processing in R p

3 min read 16-09-2024 66
Error in unserialize(node$con) : MultisessionFuture (future_lapply-8) failed
Error in unserialize(node$con) : MultisessionFuture (future_lapply-8) failed

How can I handle dead workers in R-future parallel processing

Resurrecting the Dead Handling Dead Workers in R future Parallel Processing Parallel processing in R facilitated by packages like future can significantly speed

3 min read 13-09-2024 80
How can I handle dead workers in R-future parallel processing
How can I handle dead workers in R-future parallel processing

Function works with plan(sequential) but not plan(multisession)

Debugging Parallel Execution with future map dfr A Case Study This article explores a common issue encountered when parallelizing code using the future map dfr

2 min read 31-08-2024 63
Function works with plan(sequential) but not plan(multisession)
Function works with plan(sequential) but not plan(multisession)