kondratko
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I actually have tested going through RAID on this. I am trying to kill of the latency involved with the client write and server read. I just want to dump directly to memory of the server. The data throughput eon the SCRAMNet only exceeds 200 MBps. I was hoping for like 800MBps ;-) Peter The diagram of the mobo bus system can be seen here: http://www.gocct.com/sheets/diagram/pp41x03x.htm and the descriptions at http://www.gocct.com/sheets/pp41003x.htm It clearly shows PCI Express 1x bus for the three 1 GbE. If you have any thoughts, let me know. Peter
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All, Good suggestions! I have tried the teaming of adapters already. It seems that with each ethernet card being point-to-point to individual server ethernet card it does not give me any throughput improvements. I am not sure if I require a switch that supports aggregation to see any bandwidth in excess of ~115MB/s. I have recently tried the test with the Win32 File IO read/write benchmarks (downloaded from NI). I mapped three network drives over three point-to-point ethernet connections using map option under windows. Over the three drives I was writing to the server RAM disk three independent files at the same time (I will try to do single file stiching at a later time once I get this bandwidth issue sorted out). It seems that I have not gained any bandwidth increase, still ~115MB/s. I am not sure if the client three ethernet cards are not capped in terms bus of bandwidth. If I run the same benchmark using just one of the 1GbE link (not three at same time), I also get 115MB/s. I do use Intel adapters. Yes, I would love to go to 10GbE, the problem is that the client platform so far does not allow for that upgrade. Any suggestions are widely appreciated. Peter
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All, I am trying to concotion a way to utilize multiple 1GbE ports for streaming large amount of data to a server computer. Lets say I have three 1GbE point-to-point links to the server machine (and can dump data for fast write to RAM disk) therefore I will be link limited. Is this at all possible? Anyone has some hints for this implementation. In the end it is a file that needs to be moved from the client to a server. Will this parallel multi 1GbE implementation give me increased data throughput? Example: The client Eths with 192.168.0.4, 192.168.0.5, 192.168.0.6 will be directly linked to 192.168.0.1, 192.168.0.2, 192.168.0.3, i.e. .4 talks to .1 only. I guess in the end one has to run these separate processes in a way so that file will get assembled on the server side correctly? Any way to do this dynamically for dynamic amount of 1GbE ports? Any suggestions are appreciated.Thanks Peter
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I am trying to have one application (server) talking to another one (client) over networked computers using VI-Server. The server application will be talking to a compiled client (run-time environment). I am having no success in getting this to work across the network. I have tested the same server/client applications in the Development System (which I tested on port 3363 and 3364), and things work just fine over the same network (this excludes any firewalls or network connections issues). I have also tested the server and compiled client on local machines, and this also works. The application build is on port 3364, and I cannot for anything get that working across the network. I am getting "Error 66 occurred at Open Application Reference in Remote Run.vi", and have verified that my INI allows access to everything, see below: server.tcp.enabled=True server.tcp.port=3364 server.vi.access="+*" server.tcp.access="+*" server.tcp.paranoid=True If you guys have any points for solution, please let me know. BTW, I did telnet to both the run-time port of the client and server, therefore that does seem to indicate the the VI-server on the client application and Development System are working. At the Application:Kind after connection to the networked remote application I get : Invalid app kind. Thanks for any help and advice! Peter
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VI Server with built applications
kondratko replied to jdunham's topic in Application Design & Architecture
QUOTE (jdunham @ Dec 11 2008, 11:40 PM) Have you tried this on the network? I am having very hard time getting this to work in the Run-time environment running on networked computer. Funny thing is everything works under Development System (which I keep on port 3363). The application build is on port 3364, and I cannot for anything get that working. I am getting "Error 66 occurred at Open Application Reference in Remote Run.vi", and have verified that my INI allows access to everything, see below: server.tcp.enabled=True server.tcp.port=3364 server.vi.access="+*" server.tcp.access="+*" server.tcp.paranoid=True If you guys have any points for solution, let me know. BTW, I did just telnet to both of the ports and that does seem to indicate the the VI-server on the Application and Development System are working. -
The Extech is on its way. Thanks for your code and the document. In my case, I also want instant display and very large temperature ranges (i.e. -200C, which typically depends on thermocouple). NI is specking the NI ENET-9211 with 0C-55C, I am not sure if that is the box operating temperature, or the actual measurement range. The 24bit resolution should result in larger ranges. John and others, thanks for your input! Peter
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John, Thanks for your quick reply. I actually did place a purchase of the HH806. However I might buy the one you opted for. I would not ming getting your LV code for data capture. Thanks again, Peter
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Hey ooth, I am considering buyig this HH806AU temp sensor/logger/streamer. Before I do that, I want to make sure that it can be "talked" to via LV and its USB (COM) connection. I have called the customer support, but they were completely un-knowledgeable in the type of the driver or LV interface. Did you have any luck hacking this thing so you have LV control? I am after just a temperature streaming capability. Let me know. Thank you. Peter