[R] Regarding Issue Running Parallel Computing on Linux RHEL version 8

[Huseni, Sadamhusen]

Hi Ivan,

I am sharing the session information as below. Also, I will be sharing the code which is utilized to do parallel computing.
Note: we are using different version of R on Linux version 7 & 8.

###***Session information from Linux version 8
R version 4.4.1 (2024-06-14)
Platform: x86_64-redhat-linux-gnu
Running under: Red Hat Enterprise Linux 8.10 (Ootpa)
 
Matrix products: default
BLAS/LAPACK: /usr/lib64/libopenblaso-r0.3.15.so;  LAPACK version 3.9.0
 
locale:
[1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8       LC_NAME=C
[9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
 
time zone: America/New_York
tzcode source: system (glibc)
 
attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base
 
loaded via a namespace (and not attached):
[1] compiler_4.4.1

###***Session information from Linux version 7

R version 3.6.0 (2019-04-26)
Platform: x86_64-redhat-linux-gnu (64-bit)
Running under: Red Hat Enterprise Linux
 
Matrix products: default
BLAS/LAPACK: /usr/lib64/R/lib/libRblas.so
 
locale:
[1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8       LC_NAME=C
[9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
 
attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base
 
loaded via a namespace (and not attached):
[1] compiler_3.6.0


Thanks,
Sadam

-----Original Message-----
From: Ivan Krylov <ikrylov using disroot.org> 
Sent: Tuesday, January 14, 2025 1:53 PM
To: Huseni, Sadamhusen <Sadamhusen.Huseni using genpact.com>
Cc: r-help using R-project.org
Subject: Re: [R] Regarding Issue Running Parallel Computing on Linux RHEL version 8

>

Dear Sadam,

В Mon, 13 Jan 2025 14:34:20 +0000
"Huseni, Sadamhusen" <Sadamhusen.Huseni using genpact.com> пишет:

> Issue Observed: The script hangs and does not complete execution 
> post-update. Previously, it took around two hours; now it runs for 
> over 17 hours without finishing.

Do you still have the RHEL 7 machine? Could you please share the
sessionInfo() output at least from the RHEL 8 machine but, if possible, also from the RHEL 7 machine?

>   library(foreach)
>   library(parallel)
>   library(parallelly)
>   library(forecast)
>   library(tseries)
>   library(prophet)
>   library(lubridate)
>   library(tis)
>   library(tsoutliers)

Could you identify and share the parts of the script that launch the computation in parallel?

--
Best regards,
Ivan