Permission denied for increase hugepagesize

[Maddi]

For a specific need, wanted to increase the hugepagesize using the below commands, but it has been denied. Is there any alternative approach to increase the hugepagesize

bash -c 'echo 4 > /sys/devices/system/node/node0/hugepages/hugepages-1048576kB/nr_hugepages'
bash -c 'echo 4 > /sys/devices/system/node/node1/hugepages/hugepages-1048576kB/nr_hugepages'
bash -c 'echo 4 > /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages'

The current status shows:

cat /proc/meminfo|grep Huge
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
FileHugePages: 0 kB
HugePages_Total: 0   <== not available
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB  <== need to increase to 1GB
Hugetlb: 0 kB

[RemyaP_Intel]

Hi,

Thank you for posting in Intel Communities.

Could you please confirm which DevCloud you are using? Is it DevCloud for OneAPI/ Edge/ FPGA?

Regards,

Remya Premdas

[Maddi]

Hello,

Iam using DevCloud for OneAPI

[RemyaP_Intel]

Hi,

We are checking with our team internally. We'll get back to you with an update.

Regards,

Remya Premdas

[RemyaP_Intel]

Hi,

Sorry to inform you that, since DevCloud is set up uniformly as a cluster for various operations we will not be able to increase hugepage size. 

Also note that, hugepaging is a complex and, if used in the wrong way, it might decrease overall performance. Example if a hugepage is swapped, reading it is only faster if one needs to access almost the entire hugepage. That means if user randomly access different parts of the memory and just read a couple of kilobytes, user should just use plain old normal pages.

Regards,

Remya Premdas

[RemyaP_Intel]

Hi,

We haven't heard back from you. Did we clarify your query? If yes, can we go ahead and close this case?

Regards,

Remya Premdas

[RemyaP_Intel]

Hi,

We assume that your issue is resolved. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.

Regards,

Remya Premdas