Problem Note 70794: The MCMC procedure issues a warning in SAS® Studio when you specify the NTHREADS= option
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If you specify the NTHREADS= option in the PROC MCMC statement in SAS Studio, the following log message occurs:
WARNING: PROC MCMC is unable to perform multithreading. The NTHREADS- option is ignored and one thread is used by default.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Studio | Microsoft® Windows® for x64 | 3.82 | 9.4 TS1M8 | ||
| Microsoft Windows 8 Enterprise 32-bit | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8 Enterprise x64 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8 Pro 32-bit | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8 Pro x64 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8.1 Enterprise 32-bit | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8.1 Enterprise x64 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8.1 Pro 32-bit | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 8.1 Pro x64 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 10 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows 11 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2008 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2008 R2 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2008 for x64 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2012 Datacenter | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2012 R2 Datacenter | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2012 R2 Std | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2012 Std | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2016 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2019 | 3.82 | 9.4 TS1M8 | ||||
| Microsoft Windows Server 2022 | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Enterprise 32 bit | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Enterprise x64 | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Home Premium 32 bit | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Home Premium x64 | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Professional 32 bit | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Professional x64 | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Ultimate 32 bit | 3.82 | 9.4 TS1M8 | ||||
| Windows 7 Ultimate x64 | 3.82 | 9.4 TS1M8 | ||||
| 64-bit Enabled AIX | 3.82 | 9.4 TS1M8 | ||||
| 64-bit Enabled Solaris | 3.82 | 9.4 TS1M8 | ||||
| Linux for x64 | 3.82 | 9.4 TS1M8 | ||||
| Solaris for x64 | 3.82 | 9.4 TS1M8 | ||||
A fix for this issue for SAS/STAT 15.3 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/L9L.html#70794
The NTHREADS= option in PROC MCMC statement is ignored in SAS® Studio
| Type: | Problem Note |
| Priority: | high |
| Topic: | Analytics ==> Bayesian Analysis SAS Reference ==> Procedures ==> MCMC |
| Date Modified: | 2024-05-30 16:05:55 |
| Date Created: | 2024-05-13 15:27:30 |