NVMe native vs NVMe over fabrics on ConnectX-3
How much performance do you lose by running NVMe devices over Ethernet or InfiniBand compared to running them natively?We did the test using ConnectX-3 adapters on Ethernet and InfiniBand.Here are the...
View ArticleClik here to view.
Re: OFED/IBDUMP for ConnectX-4
Thanks for the response, Philip! I can get the dumps, they just don't look too pretty and tcpdump doesn't seem to understand the RoCE traffic. I was hoping to just get timestamps on each RDMA transfer...
View ArticleOFED 2.4-1.0.4 for EL7.2?
Is there [going to be] an OFED 2.4-1.0.4 release for EL7.2? I'm not currently in a position to upgrade to one of the 3-series and I've got a Knights Landing to play with.
View ArticleSX6036 IPoIB speed issue
Hi, I was hoping that someone would be able to help me.I have 15 HP DL380 gen9 servers running Windows Server 2012 R2 each with dual port HP Connect-X3 VPI cards connected to a Mellanox SX6036 switch....
View ArticleConnectX-2 IPoIB Performance Help
I really need some expertise here: I have two Windows 10 Machines with two MHQH19B-XTR 40 Gbit Adapters and a QSFP cable in between. The Vlan manager is opensm. The connection should be about 32Gbits...
View ArticleClik here to view.
Re: How to connect two (small) fat tree networks
Combining IB fabrics is quite common, and sharing storage is often the reason. There are enough detailed considerations that you should consult with your local Mellanox sales engineer. However, there...
View ArticleRe: SX6018 ?? Please Help
hi bruceI've the same problems with a SX6018 Switch out of ebay, because it is an EMC. I do have an actual Image of MLNX-OS for that switch, but I dont know any way to bring it up. So if you have an...
View ArticleFiber optic cable?
I own an is5022 8-port 40 GB/s switch. Can it use a QSFP fiber optic cable? Or does it have to be copper? Just want to make sure before I buy a fiber optic cable. Thank you!
View ArticleClik here to view.
Please help
Hello ,I'm just a new bee.my company have bought a SX6025.I want to know how to manage it.network switch have a console port.But it only have a I2C port.Please tell me what should I do?
View ArticleRe: Does ubuntu 14.04 inbox-driver support connectx-4 ?
Hi Taiyoung,Regarding ubuntu 14.04 inbox driver and connectx-4 en , I suggest to contact the OS vendor in order to receive the supported matrix compatibility. Thank you , Karen.
View ArticleRe: Fiber optic cable?
Thank you for the quick response! Would the fiber optic cable be better in either transfer speeds or latency than the copper cable? Or are they the same in those characteristics?
View ArticleClik here to view.
Re: Usage of CX4 to QSFP cable for the Application
hi, 1. It is possible to change the configuration of the CX3 NIC to accept 10G over 4 lanes. 2. Can you please share the .ini of the OEM (using the aforementioned 'flint dc' command)? We will need to...
View ArticleRe: nvidia_peer_memory for Cuda8 ?
Hi,Where did you compile take the driver from ? could you try using the driver from here ?GitHub - Mellanox/nv_peer_memoryhttp://www.mellanox.com/page/products_dyn?product_family=116Did you compile and...
View ArticleRe: Driverdisk for Xenserver 7?
Hi, Please refer to the currently supported drivers in the following link : http://www.mellanox.com/page/products_dyn?product_family=26&mtag=linux_sw_drivers Xenserver 7 is not supported with...
View Article40Gb/s IPoIB only gives 5Gb/s real throughput?!
I really need some expertise here: I have two Windows 10 Machines with two MHQH19B-XTR 40 Gbit Adapters and a QSFP cable in between. The Vlan manager is opensm. The connection should be about 32Gbits...
View ArticleClik here to view.
Re: MPI startup():ofa fabric is not available and fallback fabric is not exist
Hi, Could you check if this info may be relevant to you? MPI startup(): ofa fabric is not availableCould you describe step by step how do you submit the job? What are the hosts? How many CPUs for each...
View ArticleRe: 40Gb/s IPoIB only gives 5Gb/s real throughput?!
Hi DanieCould you help check the type of your pcie slot Thanks
View ArticleRe: Fiber optic cable?
Performance for Copper and AOC cable should be the same , the main difference is Copper is cheaper , but it cannot be support more than 7m Thanks
View Article“Invalid module format” error while loading nv_peer_mem in CentOS 6.6
Hello everybody,I have 2 twin servers, with same hardware (Infiniband and Nvidia Tesla) and same OS (CentOS6.6, 2.6.32-504.el6.x86_64 kernel and drivers).On host1 everything is working fine as usual,...
View Article