While JFGI-ing the solution most of the comments on this appear to directed towards laptop solutions and pointing me to Bumblebee.
Is this the proper option for Desktops destined for HPC activity.
If not, specific guidance would be appreciated.
For my Xi's here is the VGA list from lspci.
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01:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics Family (rev 10) (prog-if 00 [VGA controller])
Subsystem: ASPEED Technology, Inc. ASPEED Graphics Family
Flags: medium devsel, IRQ 16
Memory at f7000000 (32-bit, non-prefetchable) [size=8M]
Memory at f6fe0000 (32-bit, non-prefetchable) [size=128K]
I/O ports at bc00 [size=128]
Capabilities: <access denied>
Kernel driver in use: ast
Kernel modules: ast
08:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce 9800 GT] (rev a2) (prog-if 00 [VGA controller])
Subsystem: eVga.com. Corp. Device c987
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at f8000000 (64-bit, non-prefetchable) [size=32M]
I/O ports at ec00 [size=128]
Expansion ROM at f7fe0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel modules: nouveau, nvidia_drm, nvidia
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00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 8053
Flags: bus master, fast devsel, latency 0, IRQ 128
Memory at da000000 (64-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 4000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
01:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 730] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 2b4e
Flags: bus master, fast devsel, latency 0, IRQ 126
Memory at db000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=128M]
Memory at d8000000 (64-bit, prefetchable) [size=32M]
I/O ports at 3000 [size=128]
Expansion ROM at dc080000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nouveau
Bill Capehart
Atmos Sci.
SD Mines