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5.10. RDMA 接続の検証

システム間で、特にレガシー Single Root I/O Virtualization (SR-IOV) イーサネットに関して、Remote Direct Memory Access (RDMA) 接続が機能していることを確認します。

手順

  1. 次のコマンドを使用して、各 rdma-workload-client Pod に接続します。 

    $ oc rsh -n default rdma-sriov-32-workload
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    出力例

    sh-5.1#
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  2. 次のコマンドを使用して、最初のワークロード Pod に割り当てられた IP アドレスを確認します。この例では、最初のワークロード Pod は RDMA テストサーバーです。 

    sh-5.1# ip a
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    出力例

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0@if3970: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP group default
    link/ether 0a:58:0a:80:02:a7 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.128.2.167/23 brd 10.128.3.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::858:aff:fe80:2a7/64 scope link
       valid_lft forever preferred_lft forever
3843: net1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 26:34:fd:53:a6:ec brd ff:ff:ff:ff:ff:ff
    altname enp55s0f0v5
    inet 192.168.4.225/28 brd 192.168.4.239 scope global net1
       valid_lft forever preferred_lft forever
    inet6 fe80::2434:fdff:fe53:a6ec/64 scope link
       valid_lft forever preferred_lft forever
sh-5.1#
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    この Pod に割り当てられた RDMA サーバーの IP アドレスは、net1 インターフェイスです。この例では、IP アドレスは 192.168.4.225 です。

  3. ibstatus コマンドを実行して、各 RDMA デバイス mlx5_x に関連付けられている link_layer タイプ (Ethernet または Infiniband) を取得します。出力で state フィールドを確認することで、すべての RDMA デバイスのステータスもわかります。フィールドには ACTIVE または DOWN のいずれかが表示されます。 

    sh-5.1# ibstatus
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    出力例

    Infiniband device 'mlx5_0' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 4: ACTIVE
	phys state:	 5: LinkUp
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_1' port 1 status:
	default gid:	 fe80:0000:0000:0000:e8eb:d303:0072:1415
	base lid:	 0xc
	sm lid:		 0x1
	state:		 4: ACTIVE
	phys state:	 5: LinkUp
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 InfiniBand

Infiniband device 'mlx5_2' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_3' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_4' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_5' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_6' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_7' port 1 status:
	default gid:	 fe80:0000:0000:0000:2434:fdff:fe53:a6ec
	base lid:	 0x0
	sm lid:		 0x0
	state:		 4: ACTIVE
	phys state:	 5: LinkUp
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_8' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_9' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

sh-5.1#
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  4. ワーカーノード上の各 RDMA mlx5 デバイスの link_layer を取得するために、ibstat コマンドを実行します。 

    sh-5.1# ibstat | egrep "Port|Base|Link"
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    出力例

    Port 1:
		Physical state: LinkUp
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Physical state: LinkUp
		Base lid: 12
		Port GUID: 0xe8ebd30300721415
		Link layer: InfiniBand
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Physical state: LinkUp
		Base lid: 0
		Port GUID: 0x2434fdfffe53a6ec
		Link layer: Ethernet
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
	Port 1:
		Base lid: 0
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
sh-5.1#
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  5. RDMA 共有デバイスまたはホストデバイス用のワークロード Pod では、mlx5_x という名前の RDMA デバイスがすでに認識されており、通常は mlx5_0 または mlx5_1 です。RDMA レガシー SR-IOV ワークロード Pod では、どの RDMA デバイスがどの Virtual Function (VF) サブインターフェイスに関連付けられているかを確認する必要があります。この情報は次のコマンドを使用して表示します。 

    sh-5.1# rdma link show
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    出力例

    link mlx5_0/1 state ACTIVE physical_state LINK_UP
link mlx5_1/1 subnet_prefix fe80:0000:0000:0000 lid 12 sm_lid 1 lmc 0 state ACTIVE physical_state LINK_UP
link mlx5_2/1 state DOWN physical_state DISABLED
link mlx5_3/1 state DOWN physical_state DISABLED
link mlx5_4/1 state DOWN physical_state DISABLED
link mlx5_5/1 state DOWN physical_state DISABLED
link mlx5_6/1 state DOWN physical_state DISABLED
link mlx5_7/1 state ACTIVE physical_state LINK_UP netdev net1
link mlx5_8/1 state DOWN physical_state DISABLED
link mlx5_9/1 state DOWN physical_state DISABLED
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    この例では、RDMA デバイス名 mlx5_7 が net1 インターフェイスに関連付けられています。この出力は、次のコマンドで RDMA 帯域幅テストを実行するために使用します。このテストでは、ワーカーノード間の RDMA 接続も検証します。

  6. 次の ib_write_bw RDMA 帯域幅テストコマンドを実行します。 

    sh-5.1# /root/perftest/ib_write_bw -R -T 41 -s 65536 -F -x 3 -m 4096 --report_gbits -q 16 -D 60  -d mlx5_7 -p 10000 --source_ip  192.168.4.225 --use_cuda=0 --use_cuda_dmabuf
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    ここでは、以下のようになります。

    • mlx5_7 RDMA デバイスを -d スイッチで渡します。
    • RDMA サーバーを起動するための送信元 IP アドレスは 192.168.4.225 です。
    • --use_cuda=0、--use_cuda_dmabuf スイッチは、GPUDirect RDMA の使用を示します。

    出力例

    WARNING: BW peak won't be measured in this run.
Perftest doesn't supports CUDA tests with inline messages: inline size set to 0

************************************
* Waiting for client to connect... *
************************************
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  7. 別のターミナルウィンドウを開き、RDMA テストクライアント Pod として機能する 2 番目のワークロード Pod で、oc rsh コマンドを実行します。 

    $ oc rsh -n default rdma-sriov-33-workload
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    出力例

    sh-5.1#
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  8. 次のコマンドを使用して、net1 インターフェイスから RDMA テストクライアント Pod の IP アドレスを取得します。 

    sh-5.1# ip a
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    出力例

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0@if4139: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP group default
    link/ether 0a:58:0a:83:01:d5 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.131.1.213/23 brd 10.131.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::858:aff:fe83:1d5/64 scope link
       valid_lft forever preferred_lft forever
4076: net1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 56:6c:59:41:ae:4a brd ff:ff:ff:ff:ff:ff
    altname enp55s0f0v0
    inet 192.168.4.226/28 brd 192.168.4.239 scope global net1
       valid_lft forever preferred_lft forever
    inet6 fe80::546c:59ff:fe41:ae4a/64 scope link
       valid_lft forever preferred_lft forever
sh-5.1#
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  9. 次のコマンドを使用して、各 RDMA デバイス mlx5_x に関連付けられている link_layer タイプを取得します。 

    sh-5.1# ibstatus
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    出力例

    Infiniband device 'mlx5_0' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 4: ACTIVE
	phys state:	 5: LinkUp
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_1' port 1 status:
	default gid:	 fe80:0000:0000:0000:e8eb:d303:0072:09f5
	base lid:	 0xd
	sm lid:		 0x1
	state:		 4: ACTIVE
	phys state:	 5: LinkUp
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 InfiniBand

Infiniband device 'mlx5_2' port 1 status:
	default gid:	 fe80:0000:0000:0000:546c:59ff:fe41:ae4a
	base lid:	 0x0
	sm lid:		 0x0
	state:		 4: ACTIVE
	phys state:	 5: LinkUp
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_3' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_4' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_5' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_6' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_7' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_8' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet

Infiniband device 'mlx5_9' port 1 status:
	default gid:	 0000:0000:0000:0000:0000:0000:0000:0000
	base lid:	 0x0
	sm lid:		 0x0
	state:		 1: DOWN
	phys state:	 3: Disabled
	rate:		 200 Gb/sec (4X HDR)
	link_layer:	 Ethernet
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  10. オプション: ibstat コマンドを使用して、Mellanox カードのファームウェアバージョンを取得します。 

    sh-5.1# ibstat
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    出力例

    CA 'mlx5_0'
	CA type: MT4123
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0xe8ebd303007209f4
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Active
		Physical state: LinkUp
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_1'
	CA type: MT4123
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0xe8ebd303007209f5
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Active
		Physical state: LinkUp
		Rate: 200
		Base lid: 13
		LMC: 0
		SM lid: 1
		Capability mask: 0xa651e848
		Port GUID: 0xe8ebd303007209f5
		Link layer: InfiniBand
CA 'mlx5_2'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0x566c59fffe41ae4a
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Active
		Physical state: LinkUp
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x546c59fffe41ae4a
		Link layer: Ethernet
CA 'mlx5_3'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0xb2ae4bfffe8f3d02
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_4'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0x2a9967fffe8bf272
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_5'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0x5aff2ffffe2e17e8
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_6'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0x121bf1fffe074419
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_7'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0xb22b16fffed03dd7
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_8'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0x523800fffe16d105
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
CA 'mlx5_9'
	CA type: MT4124
	Number of ports: 1
	Firmware version: 20.43.1014
	Hardware version: 0
	Node GUID: 0xd2b4a1fffebdc4a9
	System image GUID: 0xe8ebd303007209f4
	Port 1:
		State: Down
		Physical state: Disabled
		Rate: 200
		Base lid: 0
		LMC: 0
		SM lid: 0
		Capability mask: 0x00010000
		Port GUID: 0x0000000000000000
		Link layer: Ethernet
sh-5.1#
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  11. クライアントワークロード Pod が使用する Virtual Function サブインターフェイスに関連付けられている RDMA デバイスを特定するために、次のコマンドを実行します。この例では、net1 インターフェイスは RDMA デバイス mlx5_2 を使用しています。 

    sh-5.1# rdma link show
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    出力例

    link mlx5_0/1 state ACTIVE physical_state LINK_UP
link mlx5_1/1 subnet_prefix fe80:0000:0000:0000 lid 13 sm_lid 1 lmc 0 state ACTIVE physical_state LINK_UP
link mlx5_2/1 state ACTIVE physical_state LINK_UP netdev net1
link mlx5_3/1 state DOWN physical_state DISABLED
link mlx5_4/1 state DOWN physical_state DISABLED
link mlx5_5/1 state DOWN physical_state DISABLED
link mlx5_6/1 state DOWN physical_state DISABLED
link mlx5_7/1 state DOWN physical_state DISABLED
link mlx5_8/1 state DOWN physical_state DISABLED
link mlx5_9/1 state DOWN physical_state DISABLED
sh-5.1#
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  12. 次の ib_write_bw RDMA 帯域幅テストコマンドを実行します。 

    sh-5.1# /root/perftest/ib_write_bw -R -T 41 -s 65536 -F -x 3 -m 4096 --report_gbits -q 16 -D 60  -d mlx5_2 -p 10000 --source_ip  192.168.4.226 --use_cuda=0 --use_cuda_dmabuf 192.168.4.225
    Copy to Clipboard Toggle word wrap

    ここでは、以下のようになります。

    • mlx5_2 RDMA デバイスを -d スイッチで渡します。
    • 送信元 IP アドレスは 192.168.4.226 で、RDMA サーバーの送信先 IP アドレスは 192.168.4.225 です。

    • --use_cuda=0、--use_cuda_dmabuf スイッチは、GPUDirect RDMA の使用を示します。

      出力例

      WARNING: BW peak won't be measured in this run.
Perftest doesn't supports CUDA tests with inline messages: inline size set to 0
Requested mtu is higher than active mtu
Changing to active mtu - 3
initializing CUDA
Listing all CUDA devices in system:
CUDA device 0: PCIe address is 61:00

Picking device No. 0
[pid = 8909, dev = 0] device name = [NVIDIA A40]
creating CUDA Ctx
making it the current CUDA Ctx
CUDA device integrated: 0
using DMA-BUF for GPU buffer address at 0x7f8738600000 aligned at 0x7f8738600000 with aligned size 2097152
allocated GPU buffer of a 2097152 address at 0x23a7420 for type CUDA_MEM_DEVICE
Calling ibv_reg_dmabuf_mr(offset=0, size=2097152, addr=0x7f8738600000, fd=40) for QP #0
---------------------------------------------------------------------------------------
                    RDMA_Write BW Test
 Dual-port       : OFF		Device         : mlx5_2
 Number of qps   : 16		Transport type : IB
 Connection type : RC		Using SRQ      : OFF
 PCIe relax order: ON		Lock-free      : OFF
 ibv_wr* API     : ON		Using DDP      : OFF
 TX depth        : 128
 CQ Moderation   : 1
 CQE Poll Batch  : 16
 Mtu             : 1024[B]
 Link type       : Ethernet
 GID index       : 3
 Max inline data : 0[B]
 rdma_cm QPs	 : ON
 Data ex. method : rdma_cm 	TOS    : 41
---------------------------------------------------------------------------------------
 local address: LID 0000 QPN 0x012d PSN 0x3cb6d7
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x012e PSN 0x90e0ac
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x012f PSN 0x153f50
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0130 PSN 0x5e0128
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0131 PSN 0xd89752
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0132 PSN 0xe5fc16
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0133 PSN 0x236787
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0134 PSN 0xd9273e
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0135 PSN 0x37cfd4
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0136 PSN 0x3bff8f
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0137 PSN 0x81f2bd
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0138 PSN 0x575c43
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x0139 PSN 0x6cf53d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x013a PSN 0xcaaf6f
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x013b PSN 0x346437
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 local address: LID 0000 QPN 0x013c PSN 0xcc5865
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x026d PSN 0x359409
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x026e PSN 0xe387bf
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x026f PSN 0x5be79d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0270 PSN 0x1b4b28
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0271 PSN 0x76a61b
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0272 PSN 0x3d50e1
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0273 PSN 0x1b572c
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0274 PSN 0x4ae1b5
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0275 PSN 0x5591b5
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0276 PSN 0xfa2593
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0277 PSN 0xd9473b
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0278 PSN 0x2116b2
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x0279 PSN 0x9b83b6
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x027a PSN 0xa0822b
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x027b PSN 0x6d930d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x027c PSN 0xb1a4d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
---------------------------------------------------------------------------------------
 #bytes     #iterations    BW peak[Gb/sec]    BW average[Gb/sec]   MsgRate[Mpps]
 65536      10329004         0.00               180.47 		     0.344228
---------------------------------------------------------------------------------------
deallocating GPU buffer 00007f8738600000
destroying current CUDA Ctx
sh-5.1#
      Copy to Clipboard Toggle word wrap

      テストが正常な場合は、期待される BW average と Mpps 単位の MsgRate が表示されます。

      ib_write_bw コマンドが完了すると、サーバー側の出力もサーバー Pod に表示されます。以下の例を参照してください。

      出力例

      WARNING: BW peak won't be measured in this run.
Perftest doesn't supports CUDA tests with inline messages: inline size set to 0

************************************
* Waiting for client to connect... *
************************************
Requested mtu is higher than active mtu
Changing to active mtu - 3
initializing CUDA
Listing all CUDA devices in system:
CUDA device 0: PCIe address is 61:00

Picking device No. 0
[pid = 9226, dev = 0] device name = [NVIDIA A40]
creating CUDA Ctx
making it the current CUDA Ctx
CUDA device integrated: 0
using DMA-BUF for GPU buffer address at 0x7f447a600000 aligned at 0x7f447a600000 with aligned size 2097152
allocated GPU buffer of a 2097152 address at 0x2406400 for type CUDA_MEM_DEVICE
Calling ibv_reg_dmabuf_mr(offset=0, size=2097152, addr=0x7f447a600000, fd=40) for QP #0
---------------------------------------------------------------------------------------
                    RDMA_Write BW Test
 Dual-port       : OFF		Device         : mlx5_7
 Number of qps   : 16		Transport type : IB
 Connection type : RC		Using SRQ      : OFF
 PCIe relax order: ON		Lock-free      : OFF
 ibv_wr* API     : ON		Using DDP      : OFF
 CQ Moderation   : 1
 CQE Poll Batch  : 16
 Mtu             : 1024[B]
 Link type       : Ethernet
 GID index       : 3
 Max inline data : 0[B]
 rdma_cm QPs	 : ON
 Data ex. method : rdma_cm 	TOS    : 41
---------------------------------------------------------------------------------------
 Waiting for client rdma_cm QP to connect
 Please run the same command with the IB/RoCE interface IP
---------------------------------------------------------------------------------------
 local address: LID 0000 QPN 0x026d PSN 0x359409
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x026e PSN 0xe387bf
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x026f PSN 0x5be79d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0270 PSN 0x1b4b28
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0271 PSN 0x76a61b
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0272 PSN 0x3d50e1
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0273 PSN 0x1b572c
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0274 PSN 0x4ae1b5
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0275 PSN 0x5591b5
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0276 PSN 0xfa2593
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0277 PSN 0xd9473b
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0278 PSN 0x2116b2
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x0279 PSN 0x9b83b6
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x027a PSN 0xa0822b
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x027b PSN 0x6d930d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 local address: LID 0000 QPN 0x027c PSN 0xb1a4d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:225
 remote address: LID 0000 QPN 0x012d PSN 0x3cb6d7
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x012e PSN 0x90e0ac
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x012f PSN 0x153f50
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0130 PSN 0x5e0128
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0131 PSN 0xd89752
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0132 PSN 0xe5fc16
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0133 PSN 0x236787
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0134 PSN 0xd9273e
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0135 PSN 0x37cfd4
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0136 PSN 0x3bff8f
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0137 PSN 0x81f2bd
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0138 PSN 0x575c43
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x0139 PSN 0x6cf53d
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x013a PSN 0xcaaf6f
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x013b PSN 0x346437
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
 remote address: LID 0000 QPN 0x013c PSN 0xcc5865
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:192:168:04:226
---------------------------------------------------------------------------------------
 #bytes     #iterations    BW peak[Gb/sec]    BW average[Gb/sec]   MsgRate[Mpps]
 65536      10329004         0.00               180.47 		     0.344228
---------------------------------------------------------------------------------------
deallocating GPU buffer 00007f447a600000
destroying current CUDA Ctx
      Copy to Clipboard Toggle word wrap

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