ESCOMP / ESCOMP/CAM

RRTMGP not working with GPUs on derecho

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#997 1 comment 0 reactions 1 assignee Claimed by @sjsprecious View on GitHub
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Description

### What happened?

@sjsprecious reported that CAM w/ RRTMGP is not running with GPUs on derecho. He is also not able to run the standalone RRTMGP tests with tag v1.7 of the rte-rrtmgp external. He has contacted Robert Pincus about this problem.

### What are the steps to reproduce the bug?

From Jian:

> I used the nvhpc/23.7 compiler and cuda/12.2.1 version.
> I downloaded the input data from git@github.com:earth-system-radiation/rrtmgp-data.git
> I set "RTE_KERNELS=accel" to enable the GPU code.
> My compiler flags are "-g -Minfo -Mchkptr -Mstandard -Kieee -Mchkstk
> -Mallocatable=03 -Mpreprocess -acc -gpu=cc80,lineinfo -Minfo=accel".

### What CAM tag were you using?

cam6_3_148 and later

### What machine were you running CAM on?

CISL machine (e.g. cheyenne)

### What compiler were you using?

NVHPC

### Path to a case directory, if applicable

_No response_

### Will you be addressing this bug yourself?

No

### Extra info

_No response_

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Assessment

This issue has not been assessed yet.

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