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AIvan11
Novice
2,040 Views

DMA example Arria 10 PAC

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Hi,

I am trying to run DMA example from the OPAE samples on Arria 10. I managed to run other examples such as nlb and hello_afu, but dma_afu example gives me following error:

Running test in HW mode Error fpgaDmaOpen: no memory Error fpgaDmaClose: invalid parameter  

Can you help me resolve it. Thank you.

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1 Solution
Fawaz_J_Intel
Employee
298 Views

Hello,

Can you confirm if you have sufficient memory allocated with the following command.

 

sudo sh -c "echo 20 > /sys/kernel/mm/hugepages/hugepages-\ 2048kB/nr_hugepages"

 

Also, if you are using multiple PAC cards, you need to allocate more memory. 

 

thanks

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6 Replies
Fawaz_J_Intel
Employee
298 Views

Hello,

I am still investigating the source of this error.

I will reply to you shortly.

 

Thanks

Richard_C_Intel
Employee
298 Views

Which version of OPAE are you running? Which OS?

AIvan11
Novice
298 Views

I use OPAE 1.1 on Ubuntu 18.04 server.

Fawaz_J_Intel
Employee
299 Views

Hello,

Can you confirm if you have sufficient memory allocated with the following command.

 

sudo sh -c "echo 20 > /sys/kernel/mm/hugepages/hugepages-\ 2048kB/nr_hugepages"

 

Also, if you are using multiple PAC cards, you need to allocate more memory. 

 

thanks

View solution in original post

ashishkkaul
New Contributor I
134 Views

Folks,

What was the solution to this issue? I am having the same problem. From this ticket, it is not clear how the issue got resolved?

Ofcourse, I am unable to run in sudo mode.

s005-n002:~/A10_RTL_AFU/dma_afu/sw$ sudo sh -c "echo 20 > /sys/kernel/mm/hugepages/hugepages-\ 2048kB/nr_hugepages"

Dear User,

this server does not allow you to run "sudo".

If you need to install a dependency, please put it in your home directory.

* For autotools, you can do it with "./configure --prefix=~/my-path"

* For Python packages, use "pip install <package_name> --user" or create a Conda environment.

ashishkkaul
New Contributor I
119 Views

@AIvan11 @Fawaz_J_Intel @Richard_C_Intel 

How was this issue resolved? I am having the same problem.

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