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AIvan11's avatar
AIvan11
Icon for New Contributor rankNew Contributor
7 years ago
Solved

DMA example Arria 10 PAC

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.

  • FawazJ_Altera's avatar
    FawazJ_Altera
    7 years ago

    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

6 Replies

  • FawazJ_Altera's avatar
    FawazJ_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    7 years ago

    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

    • ashishkkaul's avatar
      ashishkkaul
      Icon for Occasional Contributor rankOccasional Contributor
      4 years ago

      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.

  • FawazJ_Altera's avatar
    FawazJ_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    7 years ago

    Hello,

    I am still investigating the source of this error.

    I will reply to you shortly.

    Thanks