4x1 MIMO 100MHz N310 with SrsRAN 23.10 using CPU pining #275

IbrahimBabiker87 · 2023-10-27T08:56:05Z

IbrahimBabiker87
Oct 27, 2023

below settings in Config yaml file seems to not taking effect:

expert_execution:
350
351 #    affinities: 
352 #      l1_dl_cpus: 4                               # Optional TEXT. Sets the number of CPU cores assigned to L1 downlink tasks. Supported: [1 - Number of available cores].
353 #      l1_ul_cpus: 4                               # Optional TEXT. Sets the number of CPU cores assigned to L1 uplink tasks. Supported: [1 - Number of available cores].
354 #     l2_cell_cpus: 2                              # Optional TEXT. Sets the number of CPU cores assigned to L2 cells tasks. Supported: [1 - Number of available cores].
355 #     low_priority_cpus: 2                          # Optional TEXT. Sets the number of CPU cores assigned to low priority tasks. Supported: [1 - Number of available cores].
356 #     ru_cpus: 5                                    # Optional TEXT. Sets the number of CPU cores used for the Radio Unit tasks. Supported: [1 - Number of available cores].
357 #     l1_dl_pinning: true                              # Optional TEXT. Sets the policy used for assigning CPU cores to L1 downlink tasks.
358 #     l1_ul_pinning:                              # Optional TEXT. Sets the policy used for assigning CPU cores to L1 uplink tasks. 
359 #     l2_cell_pinning:                            # Optional TEXT. Sets the policy used for assigning CPU cores to L2 cell tasks.
360 #     low_priority_pinning:                       # Optional TEXT. Sets the policy used for assigning CPU cores to low priority tasks.
361 #     ru_pinning:                                 # Optional TEXT. Sets the policy used for assigning CPU cores to Radio Unity tasks.
362
363     threads:
364       upper_phy:
365         pdsch_processor_type: auto                    # Optional TEXT (auto). Sets the PDSCH processor type. Supported: [auto, generic, concurrent, lite].
366         nof_pdsch_threads: 5                          # Optional UINT (4). Sets the number of threads used to encode PDSCH.
367 #        nof_pusch_threads: 1                          # Optional UINT (1). Sets the number of threads used to encode PUSCH.
368         nof_ul_threads: 5                             # Optional UINT (1). Sets the number of upprt PHY threads to proccess uplink.
369         nof_dl_threads: 3                             # Optional UINT (1). Sets the number of upprt PHY threads to proccess downlink.
370       lower_phy:
371         execution_profile: quad                           # Optional TEXT. Sets the lower physical layer executor profile. Supported: [single, dual, quad].

The idea is to get the maximum DL/UL Throughput, expected 1.4 in DL and 74Mbps in UL, to do so Im expecting to increase the number of cpus available for SrsRAN, However still Im getting underflows
my machine is equipped with a powerful CPU:
lscpu

Architecture:            x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Address sizes:         48 bits physical, 48 bits virtual
  Byte Order:            Little Endian
CPU(s):                  32
  On-line CPU(s) list:   0-31
Vendor ID:               AuthenticAMD
  Model name:            AMD Ryzen 9 7950X 16-Core Processor
    CPU family:          25
    Model:               97
    Thread(s) per core:  2
    Core(s) per socket:  16
    Socket(s):           1
    Stepping:            2
    Frequency boost:     enabled
    CPU max MHz:         5879.8818
    CPU min MHz:         3000.0000
    BogoMIPS:            8999.57
    Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonsto
                         p_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy 
                         abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall f
                         sgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm
                         _llc cqm_occup_llc cqm_mbm_total cqm_mbm_local avx512_bf16 clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeass
                         ists pausefilter pfthreshold avic v_vmsave_vmload vgif v_spec_ctrl avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid ove
                         rflow_recov succor smca fsrm flush_l1d
Virtualization features: 
  Virtualization:        AMD-V
Caches (sum of all):     
  L1d:                   512 KiB (16 instances)
  L1i:                   512 KiB (16 instances)
  L2:                    16 MiB (16 instances)
  L3:                    64 MiB (2 instances)

Please your suggestion to assure that SrsRAN will be working without underflow ??

IbrahimBabiker87 · 2023-10-27T09:20:28Z

IbrahimBabiker87
Oct 27, 2023
Author

With TDD 7:2

```

-----------------DL-----------------------|------------------UL--------------------

pci rnti  cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  mcs  brate   ok  nok  (%)    bsr
  1 4610   15   4   26   1.3G 1530   70   4%  2.82M |  23.4   28    74M  388    0   0%   300k
  1 4610   15   4   26   1.3G 1543   57   3%  2.82M |  23.6   28    74M  387    0   0%   300k
Late: 4; Underflow: 487; Overflow: 0;
  1 4610   15   4   25   1.2G 1451  149   9%  2.23M |  22.2   28    69M  363   25   6%   300k
  1 4610   14   4   23   1.1G 1583   17   1%  2.28M |  23.8   28    74M  387    0   0%   300k
  1 4610   15   4   25   1.2G 1547   53   3%  2.16M |  23.4   28    74M  388    0   0%   300k
  1 4610   15   4   25   1.3G 1553   47   2%  2.82M |  23.5   28    74M  387    0   0%   300k
  1 4610   15   4   26   1.3G 1557   43   2%  2.82M |  23.5   28    74M  388    0   0%   300k
Late: 124; Underflow: 262; Overflow: 0;
  1 4610   15   4   26   1.2G 1483  115   7%  2.15M |  22.8   28    71M  370   17   4%   300k
  1 4610   15   4   25   1.3G 1561   39   2%  2.82M |  23.5   28    74M  387    1   0%   300k
  1 4610   15   4   26   1.3G 1551   49   3%  2.82M |  23.5   28    74M  386    1   0%   300k
  1 4610   15   4   26   1.3G 1562   38   2%  2.56M |  23.5   28    74M  387    1   0%   300k

       -----------------DL-----------------------|------------------UL--------------------

pci rnti  cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  mcs  brate   ok  nok  (%)    bsr
  1 4610   15   4   26   1.3G 1543   57   3%  2.82M |  23.5   28    74M  387    0   0%   300k
Late: 124; Underflow: 218; Overflow: 0;
  1 4610   15   4   26   1.2G 1489  111   6%  2.25M |  22.9   28    70M  370   18   4%   300k
  1 4610   15   4   25   1.3G 1557   43   2%  2.82M |  23.5   28    74M  387    0   0%   300k
  1 4610   15   4   26   1.3G 1559   41   2%  2.82M |  23.5   28    74M  388    0   0%   300k
  1 4610   15   4   26   1.3G 1555   45   2%   2.1M |  23.5   28    74M  387    0   0%   300k
  1 4610   15   4   26   1.3G 1560   40   2%  2.82M |  23.5   28    74M  388    0   0%   300k
Late: 0; Underflow: 308; Overflow: 0;
  1 4610   15   4   26   1.3G 1528   71   4%  2.82M |  22.9   28    72M  375   12   3%   300k
  1 4610   15   4   26   1.3G 1569   31   1%  2.46M |  23.6   28    74M  387    1   0%   300k
  1 4610   15   4   26   1.3G 1551   49   3%  2.82M |  23.6   28    74M  387    0   0%   300k
  1 4610   15   4   26   1.3G 1551   49   3%  2.82M |  23.5   28    74M  388    0   0%   300k
  1 4610   15   4   26   1.3G 1561   39   2%  2.04M |  23.5   28    73M  384    3   0%   300k
Late: 0; Underflow: 271; Overflow: 0;

       -----------------DL-----------------------|------------------UL--------------------

 pci rnti  cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  mcs  brate   ok  nok  (%)    bsr
   1 4610   15   4   26   1.3G 1509   90   5%  2.82M |  22.5   28    71M  375   13   3%   300k
   1 4610   15   4   26   1.3G 1560   40   2%  2.16M |  23.5   28    74M  387    0   0%   300k
   1 4610   15   4   27   1.4G 1570   30   1%  2.06M |  23.5   28    74M  385    3   0%   300k
   1 4610   15   4   26   1.3G 1560   40   2%  2.11M |  23.5   28    74M  385    2   0%   300k
   1 4610   15   4   26   1.3G 1552   48   3%  2.82M |  23.5   28    74M  388    0   0%   300k
Late: 17; Underflow: 432; Overflow: 0;
   1 4610   15   4   25   1.2G 1473  127   7%  2.16M |  22.5   28    70M  365   22   5%   300k
   1 4610   15   4   24   1.2G 1561   39   2%  2.13M |  23.6   28    74M  388    0   0%   300k
   1 4610   15   4   26   1.3G 1561   39   2%  2.82M |  23.5   28    74M  387    0   0%   300k
   1 4610   15   4   27   1.4G 1579   21   1%  2.18M |  23.5   28    74M  388    0   0%   300k
   1 4610   15   4   27   1.3G 1560   40   2%  2.82M |  23.6   28    74M  387    0   0%   300k
Late: 0; Underflow: 669; Overflow: 0;
   1 4610   14   4   25   1.2G 1470  129   8%  2.41M |  22.4   28    70M  371   17   4%   300k

0 replies

andrepuschmann · 2023-10-27T09:47:42Z

andrepuschmann
Oct 27, 2023
Maintainer

Could you comment a bit how you use the N310, how is it connected to the PC? Do you use UHD with DPDK? I think you should. On a different note, could you try to format your messages correctly using the markdown syntax please? It makes reading the posts easier.

0 replies

IbrahimBabiker87 · 2023-10-27T10:27:21Z

IbrahimBabiker87
Oct 27, 2023
Author

Thank yuou for your reply:

N310 Connected through two fibers

enp1s0f2         UP             10.10.2.1/24 fe80::3eec:efff:fe27:ccaa/64 
enp1s0f3         UP             10.10.3.1/24 fe80::3eec:efff:fe27:ccab/64

UHD is used not DPDK
regarding the formatting sorry for that, updated :)

3 replies

andrepuschmann Oct 27, 2023
Maintainer

So you use both 10G ports, right? Could you share your radio parameters for this?

I think using DPDK for this config is required. We suggest DPDK also for OFH for 4x4 100 MHz.

regarding the formatting sorry for that, updated :)

Much appreciated.

IbrahimBabiker87 Oct 27, 2023
Author

Im getting below Error when usiing DPDK:

Lower PHY in quad executor mode.

--== srsRAN gNB (commit 374200dee) ==--

Connecting to AMF on 10.0.135.40:38412
Available radio types: uhd.
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.5.0.0-0ubuntu1~jammy1
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Making USRP object with args 'type=n3xx,mgmt_addr=10.0.64.241,addr=10.10.3.100,second_addr=10.10.2.100,streamer=replay_buffered,send_buff_size=33554432,use_dpdk=1,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000'
[INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=10.0.64.241,type=n3xx,product=n310,serial=32000F1,name=ni-n3xx-32000F1,fpga=XG,claimed=False,addr=10.10.3.100,second_addr=10.10.2.100,streamer=replay_buffered,send_buff_size=33554432,use_dpdk=1,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000
[INFO] [MPM.PeriphManager] init() called with device args `fpga=XG,master_clock_rate=122.88e6,mgmt_addr=10.0.64.241,name=ni-n3xx-32000F1,product=n310,recv_frame_size=8000,second_addr=10.10.2.100,send_buff_size=33554432,send_frame_size=8000,streamer=replay_buffered,use_dpdk=1,clock_source=internal,time_source=internal'.
[WARNING] [MPMD] DPDK was requested but is not available, falling back to regular UDP
[WARNING] [MPMD] DPDK was requested but is not available, falling back to regular UDP
[WARNING] [IO_SRV] Cannot instantiate DPDK I/O service. Proceeding with regular I/O service.
[WARNING] [MPMD] Cannot create DPDK transport, falling back to UDP
[ERROR] [RFNOC::MGMT] EnvironmentError: IOError: Timed out getting recv buff for management transaction
[ERROR] [RFNOC::GRAPH] IO Error during GSM initialization. EnvironmentError: IOError: Timed out getting recv buff for management transaction
[ERROR] [RFNOC::GRAPH] Caught exception while initializing graph: EnvironmentError: IOError: Timed out getting recv buff for management transaction
Failed to open device with address 'type=n3xx,mgmt_addr=10.0.64.241,addr=10.10.3.100,second_addr=10.10.2.100,streamer=replay_buffered,send_buff_size=33554432,use_dpdk=1': RuntimeError: Failure to create rfnoc_graph.
srsGNB ERROR: Unable to create radio session.
Aborted (core dumped)

Binding seem to be correct:

Network devices using DPDK-compatible driver
============================================
0000:01:00.2 'Ethernet Controller X710 for 10GbE SFP+ 1572' drv=vfio-pci unused=i40e
0000:01:00.3 'Ethernet Controller X710 for 10GbE SFP+ 1572' drv=vfio-pci unused=i40e

Network devices using kernel driver
===================================
0000:01:00.0 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=enp1s0f0 drv=i40e unused=vfio-pci 
0000:01:00.1 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=enp1s0f1 drv=i40e unused=vfio-pci 
0000:05:00.0 'I210 Gigabit Network Connection 1533' if=enp5s0 drv=igb unused=vfio-pci 
0000:06:00.0 'I210 Gigabit Network Connection 1533' if=enp6s0 drv=igb unused=vfio-pci 
0000:0a:00.0 'BCM57416 NetXtreme-E Dual-Media 10G RDMA Ethernet Controller 16d8' if=enp10s0f0np0 drv=bnxt_en unused=vfio-pci 
0000:0a:00.1 'BCM57416 NetXtreme-E Dual-Media 10G RDMA Ethernet Controller 16d8' if=enp10s0f1np1 drv=bnxt_en unused=vfio-pci 

No 'Baseband' devices detected
==============================

Crypto devices using kernel driver
==================================
0000:0e:00.2 'VanGogh PSP/CCP 1649' drv=ccp unused=vfio-pci 

No 'DMA' devices detected
=========================

No 'Eventdev' devices detected
==============================

No 'Mempool' devices detected
=============================

No 'Compress' devices detected
==============================

No 'Misc (rawdev)' devices detected
===================================

No 'Regex' devices detected
===========================

ismagom Oct 28, 2023
Maintainer

Have you tried UHD benchmark tool using DPDK?

IbrahimBabiker87 · 2023-10-28T23:00:04Z

IbrahimBabiker87
Oct 28, 2023
Author

Empty device address:

root@bm-able-amd:/home/ad/srsRAN_Project/configs# benchmark_rate --rx_rate 10e6 --tx_rate 10e6
benchmark_rate: command not found
root@bm-able-amd:/home/ad/srsRAN_Project/configs# /usr/lib/uhd/examples/benchmark_rate --rx_rate 10e6 --tx_rate 10e6

[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.5.0.0-0ubuntu1~jammy1
[00:00:00.000140] Creating the usrp device with: ...
Error: LookupError: KeyError: No devices found for ----->
Empty Device Address
root@bm-able-amd:/home/ad/srsRAN_Project/configs#

1 reply

ismagom Oct 28, 2023
Maintainer

It seems there's some issue with the installation with DPDK. you'll need to check with UHD doc first

IbrahimBabiker87 · 2023-10-31T11:49:33Z

IbrahimBabiker87
Oct 31, 2023
Author

Hello,

I managed to get get 1.4 without DPDK, however for each run of SRSRAN the results are different , I think its related to cpu pinning when ever I have underflow there must be some CPU maximized, So how to to set below affinities it seems it has no effect so far.

expert_execution:

  affinities: 
    l1_dl_cpus: 5                                # Optional TEXT. Sets the number of CPU cores assigned to L1 downlink tasks. Supported: [1 - Number of available cores].
   l1_ul_cpus: 5                               # Optional TEXT. Sets the number of CPU cores assigned to L1 uplink tasks. Supported: [1 - Number of available cores].
   l2_cell_cpus: 5                              # Optional TEXT. Sets the number of CPU cores assigned to L2 cells tasks. Supported: [1 - Number of available cores].
   low_priority_cpus: 2                          # Optional TEXT. Sets the number of CPU cores assigned to low priority tasks. Supported: [1 - Number of available cores].
   ru_cpus: 5                                    # Optional TEXT. Sets the number of CPU cores used for the Radio Unit tasks. Supported: [1 - Number of available cores].
   l1_dl_pinning: [1-8]                              # Optional TEXT. Sets the policy used for assigning CPU cores to L1 downlink tasks.
   l1_ul_pinning:                              # Optional TEXT. Sets the policy used for assigning CPU cores to L1 uplink tasks. 
  l2_cell_pinning:                            # Optional TEXT. Sets the policy used for assigning CPU cores to L2 cell tasks.
   low_priority_pinning:                       # Optional TEXT. Sets the policy used for assigning CPU cores to low priority tasks.
   ru_pinning:                                 # Optional TEXT. Sets the policy used for assigning CPU cores to Radio Unity tasks.

 threads: 
    upper_phy: 
     pdsch_processor_type: auto                    # Optional TEXT (auto). Sets the PDSCH processor type. Supported: [auto, generic, concurrent, lite].
     nof_pdsch_threads: 4                          # Optional UINT (4). Sets the number of threads used to encode PDSCH.
     nof_pusch_threads: 1                          # Optional UINT (1). Sets the number of threads used to encode PUSCH.
     nof_ul_threads: 2                            # Optional UINT (1). Sets the number of upprt PHY threads to proccess uplink.
     nof_dl_threads: 4                             # Optional UINT (1). Sets the number of upprt PHY threads to proccess downlink.

pci rnti  cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  mcs  brate   ok  nok  (%)    bsr
  1 4603   14   4   27   1.4G 1600    0   0%  2.01M |  21.7   28    73M  385    2   0%   300k
  1 4603   15   4   26   1.4G 1595    5   0%  1.98M |  21.7   28    73M  386    2   0%   300k
  1 4603   14   4   24   1.2G 1590   10   0%  1.98M |  21.4   27    73M  386    1   0%   300k
  1 4603   14   4   27   1.4G 1600    0   0%  1.98M |  21.5   28    74M  388    0   0%   300k
  1 4603   13   4   27   1.4G 1599    1   0%  1.98M |  21.7   28    74M  387    0   0%   300k
  1 4603   14   4   27   1.4G 1598    2   0%  1.98M |  21.7   28    72M  383    5   1%   300k
  1 4603   14   4   27   1.4G 1600    0   0%  1.98M |  21.6   27    72M  386    1   0%   300k
  1 4603   15   4   27   1.4G 1600    0   0%  1.98M |  21.2   28    73M  387    1   0%   300k
  1 4603   14   4   27   1.4G 1599    1   0%  2.82M |  21.5   28    74M  386    1   0%   300k
  1 4603   14   4   24   1.3G 1590   10   0%  2.02M |  21.5   27    71M  384    4   1%   300k
  1 4603   15   4   26   1.3G 1595    5   0%  1.98M |  21.7   28    74M  387    0   0%   300k

          -----------------DL-----------------------|------------------UL--------------------
pci rnti  cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  mcs  brate   ok  nok  (%)    bsr
  1 4603   15   4   25   1.3G 1595    5   0%  2.05M |  21.7   28    74M  388    0   0%   300k
  1 4603   14   4   27   1.4G 1599    1   0%  2.26M |  21.6   28    74M  386    1   0%   300k
  1 4603   14   4   27   1.4G 1600    0   0%  2.05M |  21.8   28    75M  388    0   0%   300k
  1 4603   15   4   27   1.4G 1600    0   0%  1.99M |  21.6   28    73M  385    2   0%   300k
  1 4603   14   4   27   1.4G 1599    1   0%  2.24M |  21.7   28    73M  386    1   0%   300k
  1 4603   14   4   27   1.4G 1600    0   0%  2.12M |  21.6   28    73M  386    2   0%   300k
  1 4603   15   4   27   1.4G 1600    0   0%  1.99M |  21.9   28    74M  388    0   0%   300k
  1 4603   14   4   27   1.4G 1600    0   0%  2.02M |  21.6   28    73M  385    2   0%   300k
  1 4603   15   4   26   1.4G 1593    7   0%  2.15M |  21.7   28    73M  387    1   0%   300k
  1 4603   14   4   26   1.4G 1600    0   0%  2.05M |  21.8   28    74M  387    0   0%   300k
  1 4603   14   4   26   1.4G 1595    5   0%  1.98M |  21.7   28    74M  388    0   0%   300k

1 reply

ismagom Oct 31, 2023
Maintainer

That's almost perfect. Very good! Do you see any warning message in the log?

peihaoY · 2024-02-08T20:28:23Z

peihaoY
Feb 8, 2024

I am also using the N310 as a gNB to implement MIMO, but it seems there is a conflict between the cell and nof_antennas. Could you please share your complete configuration file?

0 replies

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4x1 MIMO 100MHz N310 with SrsRAN 23.10 using CPU pining #275

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4x1 MIMO 100MHz N310 with SrsRAN 23.10 using CPU pining #275

IbrahimBabiker87 Oct 27, 2023

Replies: 6 comments · 5 replies

IbrahimBabiker87 Oct 27, 2023 Author

andrepuschmann Oct 27, 2023 Maintainer

IbrahimBabiker87 Oct 27, 2023 Author

andrepuschmann Oct 27, 2023 Maintainer

IbrahimBabiker87 Oct 27, 2023 Author

ismagom Oct 28, 2023 Maintainer

IbrahimBabiker87 Oct 28, 2023 Author

ismagom Oct 28, 2023 Maintainer

IbrahimBabiker87 Oct 31, 2023 Author

ismagom Oct 31, 2023 Maintainer

peihaoY Feb 8, 2024

IbrahimBabiker87
Oct 27, 2023

Replies: 6 comments 5 replies

IbrahimBabiker87
Oct 27, 2023
Author

andrepuschmann
Oct 27, 2023
Maintainer

IbrahimBabiker87
Oct 27, 2023
Author

andrepuschmann Oct 27, 2023
Maintainer

IbrahimBabiker87 Oct 27, 2023
Author

ismagom Oct 28, 2023
Maintainer

IbrahimBabiker87
Oct 28, 2023
Author

ismagom Oct 28, 2023
Maintainer

IbrahimBabiker87
Oct 31, 2023
Author

ismagom Oct 31, 2023
Maintainer

peihaoY
Feb 8, 2024