TUFLOW Message 0250 - Revision history

Par at 04:37, 8 May 2025

2025-05-08T04:37:44Z

← Older revision		Revision as of 14:37, 8 May 2025
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	\|type=[[ERROR]]		\|type=[[ERROR]]
			\|message_desc=When running HPC models (not including quadtree) over a number of processing devices (CPU threads or GPU cards) the model is split and each device gets an equal portion of the model to solve (split along the model x-dimension) . Running very small models can mean that more compute devices than model columns are used.
	\|message_desc=Too many CPU threads for model size, thread limit: <>. This error may be occur when running a small model in HPC.
			For example in the .tgc the following commands: <br>
			<tt>
			<font color="blue"><tt>Grid Size (X,Y) </tt></font> <font color="red"><tt>==</tt></font><tt> 2, 4</tt><br>
			<font color="blue"><tt>Cell Size </tt></font> <font color="red"><tt>==</tt></font><tt> 1</tt>
			</tt></br>
			Creates a model with 2 columns (in the x-direction) and 4 rows (in the y-direction). Running the above model with CPU Threads == 4 would give ERROR 0250. The minimum number of model columns for a device is 4, so a model with 10 columns could run on 2 CPU, but any more would result in ERROR 0250. Note: there is little benefit in running small models on large numbers of threads, and this may actually cause a slow down in the simulation speed due to computational overhead.<br>
			For Quadtree the number of threads must be less than the number of cells.

	\|suggestions=Review model size definition in the TGC file. <br>		\|suggestions=Review model size definition in the TGC file. <br>
	If model is intended to be small, set <font color="blue"><tt>Hardware </tt></font> <font color="red"><tt>==</tt></font><tt> CPU</tt> and <font color="blue"><tt>CPU Threads </tt></font> <font color="red"><tt>==</tt></font><tt> 1</tt> in the TCF file.		If model is intended to be small, the number of CPU threads may need to be reduced. E.g. set <font color="blue"><tt>Hardware </tt></font> <font color="red"><tt>==</tt></font><tt> CPU</tt> and <font color="blue"><tt>CPU Threads </tt></font> <font color="red"><tt>==</tt></font><tt> 1</tt> in the TCF file.

	\|uplink=[[0xxx_TUFLOW_Messages\|0xxx Messages]]		\|uplink=[[0xxx_TUFLOW_Messages\|0xxx Messages]]

Abigail.lillo at 03:48, 8 May 2025

2025-05-08T03:48:41Z

← Older revision		Revision as of 13:48, 8 May 2025
Line 4:		Line 4:

	\|type=[[ERROR]]		\|type=[[ERROR]]
	\|message_desc=Too many CPU threads for model size, thread limit: <>.		\|message_desc=Too many CPU threads for model size, thread limit: <>. This error may be occur when running a small model in HPC.
			\|suggestions=Review model size definition in the TGC file. <br>
	\|suggestions=Please contact [mailto:support@tuflow.com support@tuflow.com].
			If model is intended to be small, set <font color="blue"><tt>Hardware </tt></font> <font color="red"><tt>==</tt></font><tt> CPU</tt> and <font color="blue"><tt>CPU Threads </tt></font> <font color="red"><tt>==</tt></font><tt> 1</tt> in the TCF file.


	\|uplink=[[0xxx_TUFLOW_Messages\|0xxx Messages]]		\|uplink=[[0xxx_TUFLOW_Messages\|0xxx Messages]]

Emilie Nielsen: Created page with "{{TUFLOW_Message |tuflow_message=ERROR 0250 - Too many CPU threads for model size, thread limit: <>. |alt_msg=NA
|type=ERROR |message_desc=Too many CPU threads for mo..."

2023-03-02T01:53:13Z

Created page with "{{TUFLOW_Message |tuflow_message=ERROR 0250 - Too many CPU threads for model size, thread limit: <>. |alt_msg=NA<br> |type=ERROR |message_desc=Too many CPU threads for mo..."

New page

{{TUFLOW_Message
|tuflow_message=ERROR 0250 - Too many CPU threads for model size, thread limit: <>.
|alt_msg=NA<br>

|type=[[ERROR]]
|message_desc=Too many CPU threads for model size, thread limit: <>.
|suggestions=Please contact [mailto:support@tuflow.com support@tuflow.com].

|uplink=[[0xxx_TUFLOW_Messages|0xxx Messages]]
}}

TUFLOW Message 0250 - Revision history

Par at 04:37, 8 May 2025

Abigail.lillo at 03:48, 8 May 2025

Emilie Nielsen: Created page with "{{TUFLOW_Message |tuflow_message=ERROR 0250 - Too many CPU threads for model size, thread limit: <>. |alt_msg=NA |type=ERROR |message_desc=Too many CPU threads for mo..."

Emilie Nielsen: Created page with "{{TUFLOW_Message |tuflow_message=ERROR 0250 - Too many CPU threads for model size, thread limit: <>. |alt_msg=NA
|type=ERROR |message_desc=Too many CPU threads for mo..."