Unable to create experiment using reserved flex16 node
32 views
Skip to first unread message
Sangwoong Kim
Nov 12, 2025, 6:43:16 AMNov 12
to cloudlab-users
Hi cloudlab team!
I reserved one flex16 node for my experiment, but I cannot create an experiment using it.
The experiment's error information is as follows:
-------------------------------
Your topology could not be mapped to physical resources. In addition to any information below, you can click on the 'Logs' button above, which will provide lots of info, some of which might be useful in figuring out why it failed.
*** 1 nodes of type d760 requested, but only 0 available nodes of type d760 found
*** 1 nodes of type d760 requested, but you are only allowed to use 0
Note that your topology cannot be instantiated on this cluster. You have most likely asked for hardware that does not exist, such as nodes of a type that do not exist, or more network interfaces that exist on any of the nodes at this cluster. You will need to modify your experiment or try a different cluster - re-submitting as-is will always result in failure!
--------------------------------------
Why is this happening? Is there some issues about flex16 node or d760 type?
Would you please help me resolving this issue?
Best regards,
Sangwoong Kim.
Mike Hibler
Nov 12, 2025, 9:42:51 AMNov 12
to cloudla...@googlegroups.com
We have changed the access model for the "flex" nodes. Previously, you
needed to reserve and allocate a specific node (as you have been doing).
Now you can allocate them by type (e.g., "d760") but your project has to
be approved to use the type. While there is no need to reserve them first,
we still recommend that you do so since they are popular nodes. You can
also still allocate a specific flex node, but you cannot reserve a specific
node.
I have enabled your project for the "d760" type.
> --
> You received this message because you are subscribed to the Google Groups
> "cloudlab-users" group.
> To unsubscribe from this group and stop receiving emails from it, send an email
> to cloudlab-user...@googlegroups.com.
> To view this discussion visit https://groups.google.com/d/msgid/cloudlab-users/
> 8dee1e4f-e164-4293-acf3-4a33ae286e3cn%40googlegroups.com.
needed to reserve and allocate a specific node (as you have been doing).
Now you can allocate them by type (e.g., "d760") but your project has to
be approved to use the type. While there is no need to reserve them first,
we still recommend that you do so since they are popular nodes. You can
also still allocate a specific flex node, but you cannot reserve a specific
node.
I have enabled your project for the "d760" type.
> You received this message because you are subscribed to the Google Groups
> "cloudlab-users" group.
> To unsubscribe from this group and stop receiving emails from it, send an email
> to cloudlab-user...@googlegroups.com.
> To view this discussion visit https://groups.google.com/d/msgid/cloudlab-users/
> 8dee1e4f-e164-4293-acf3-4a33ae286e3cn%40googlegroups.com.
Sangwoong Kim
Nov 12, 2025, 8:37:34 PMNov 12
to cloudlab-users
Hi Mike,
Thank you for your help!
Best,
Sangwoong
2025년 11월 12일 수요일 오후 11시 42분 51초 UTC+9에 Mike Hibler님이 작성:
Reply all
Reply to author
Forward
0 new messages