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More below. On Oct 30, 2019, at 9:08 PM, Qianjin Zheng <qianjin.zh...@hotmail.com<mailto:qianjin.zh...@hotmail.com>> wrote: Hi Jeff, Thank you for the suggestions. I will try it. About the WRF model, I used WRF-Chem V3.5. My model worked before my service upgraded. After that, I could not run my model anymore, and the version of Open MPI is the only condition changed to v1.10.7. Thus, I suspected my WRF didn't support later versions of Open MPI. What specifically does "could not run my model any more" mean -- does it mean the application failed to compile? Did the application fail to launch? Did it generate a run-time error? ...? -- Jeff Squyres jsquy...@cisco.com<mailto:jsquy...@cisco.com>
