<html><head><base href="x-msg://394/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">No problem. If there is any problems on the Swift side please do not hesitate in contacting me. I will help in any way I can.<div><br><div><div>On Mar 19, 2012, at 10:31 AM, Matei Ripeanu wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div lang="EN-CA" link="blue" vlink="purple"><div class="WordSection1" style="page: WordSection1; "><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Jon,<o:p></o:p></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I wanted to thank you for your huge effort making this work. For us this is big progress – we can start thinking about the experiments we’d like to have for the SC paper.<o:p></o:p></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">-Matei<o:p></o:p></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></div><div><div style="border-right-style: none; border-bottom-style: none; border-left-style: none; border-width: initial; border-color: initial; border-top-style: solid; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding-top: 3pt; padding-right: 0cm; padding-bottom: 0cm; padding-left: 0cm; "><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><b><span lang="EN-US" style="font-size: 10pt; font-family: Tahoma, sans-serif; ">From:</span></b><span lang="EN-US" style="font-size: 10pt; font-family: Tahoma, sans-serif; "><span class="Apple-converted-space"> </span><a href="mailto:mosastore@googlegroups.com" style="color: blue; text-decoration: underline; ">mosastore@googlegroups.com</a><span class="Apple-converted-space"> </span>[mailto:mosastore@googlegroups.com]<span class="Apple-converted-space"> </span><b>On Behalf Of<span class="Apple-converted-space"> </span></b>Emalayan Vairavanathan<br><b>Sent:</b><span class="Apple-converted-space"> </span>March-15-12 10:30 AM<br><b>To:</b><span class="Apple-converted-space"> </span><a href="mailto:swift-devel@ci.uchicago.edu" style="color: blue; text-decoration: underline; ">swift-devel@ci.uchicago.edu</a><span class="Apple-converted-space"> </span>Devel; Jonathan Monette<br><b>Cc:</b><span class="Apple-converted-space"> </span>MosaStore; Michael Wilde; matei<br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [Swift-devel] Mosaswift update<o:p></o:p></span></div></div></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; "><o:p> </o:p></div><div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Hi Jon and All,<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">MosaStore+Swift integration is done successfully. This is really a great news.<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">I successfully ran the setup provided by Jon with MosaStore+Swift on Surveyor (on 1, 3 , 5 and 64 nodes with different number of jobs varying from 1 to 1024).<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Jon and Mike thank you again for your time in helping me to get this far.<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><b><span style="color: black; ">A quick question:</span></b><span style="color: black; "><span class="Apple-converted-space"> </span>The setup creates the swift working directory in GPFS but stores the intermediate files in MosaStore. Where should we actually have the swift-working directory (in GPFS / Mosa)? and Does this matter at all in case if I am going to use Mosa as an intermediate storage?<o:p></o:p></span></div></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><br>(As a next step I will be scripting our pipeline benchmark on swift and run at large scale to get some initial performance numbers. Also I will be parallely working to get Montage and ModFTDock running on BG/P with swift-CDM and MosaStore.)<br><br>Regards<br>Emalayan<o:p></o:p></span></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div><div><div class="MsoNormal" align="center" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; background-position: initial initial; background-repeat: initial initial; "><span style="font-size: 10pt; font-family: Arial, sans-serif; color: black; "><hr size="1" width="100%" align="center"></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><b><span style="font-size: 10pt; font-family: Arial, sans-serif; color: black; ">From:</span></b><span style="font-size: 10pt; font-family: Arial, sans-serif; color: black; "><span class="Apple-converted-space"> </span>Jonathan Monette <<a href="mailto:jonmon@mcs.anl.gov" style="color: blue; text-decoration: underline; ">jonmon@mcs.anl.gov</a>><br><b>To:</b><span class="Apple-converted-space"> </span>Emalayan Vairavanathan <<a href="mailto:svemalayan@yahoo.com" style="color: blue; text-decoration: underline; ">svemalayan@yahoo.com</a>><span class="Apple-converted-space"> </span><br><b>Cc:</b><span class="Apple-converted-space"> </span>"<a href="mailto:mosastore@googlegroups.com" style="color: blue; text-decoration: underline; ">mosastore@googlegroups.com</a>" <<a href="mailto:mosastore@googlegroups.com" style="color: blue; text-decoration: underline; ">mosastore@googlegroups.com</a>>; Justin M Wozniak <<a href="mailto:wozniak@mcs.anl.gov" style="color: blue; text-decoration: underline; ">wozniak@mcs.anl.gov</a>>; "<a href="mailto:swift-devel@ci.uchicago.edu%20Devel" style="color: blue; text-decoration: underline; ">swift-devel@ci.uchicago.edu Devel</a>" <<a href="mailto:swift-devel@ci.uchicago.edu" style="color: blue; text-decoration: underline; ">swift-devel@ci.uchicago.edu</a>><span class="Apple-converted-space"> </span><br><b>Sent:</b><span class="Apple-converted-space"> </span>Wednesday, 14 March 2012 2:29 PM<br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [Swift-devel] Mosaswift update</span><span style="color: black; "><o:p></o:p></span></div></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div><div id="yiv1518615791"><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">The working example is located in /home/jonmon/Workspace/Swift/mosaswift-test<o:p></o:p></span></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">There is a README there that provides a little bit of information.<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Quick version to run it:<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">1) start your workers<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">2) ./setup.sh<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">3) ./run.sh<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">The directory final will have 5 files if it completed without error. The content of the files will look like:<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Hello world<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Hello from <number><o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div><div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">On Mar 14, 2012, at 4:03 PM, Emalayan Vairavanathan wrote:<o:p></o:p></span></div></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><br><br><o:p></o:p></span></div><div><div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Hi Jon,<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Great, Thank you very much. Could you please send me the setup ?<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Thank you<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; ">Emalayan<o:p></o:p></span></div></div><div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><span style="color: black; "><o:p> </o:p></span></div></div><div><div><div><div class="MsoNormal" align="center" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; background-position: initial initial; background-repeat: initial initial; "><span style="font-size: 10pt; font-family: Arial, sans-serif; color: black; "><hr size="1" width="100%" align="center"></span></div><div style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 0.0001pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; "><b><span style="font-size: 10pt; font-family: Arial, sans-serif; color: black; ">From:</span></b><span style="font-size: 10pt; font-family: Arial, sans-serif; color: black; "><span class="Apple-converted-space"> </span>Jonathan Monette <<a href="mailto:jonmon@mcs.anl.gov" target="_blank" style="color: blue; text-decoration: underline; ">jonmon@mcs.anl.gov</a>><br><b>To:</b><span class="Apple-converted-space"> </span>Justin M Wozniak <<a href="mailto:wozniak@mcs.anl.gov" target="_blank" style="color: blue; text-decoration: underline; ">wozniak@mcs.anl.gov</a>><span class="Apple-converted-space"> </span><br><b>Cc:</b><span class="Apple-converted-space"> </span>"<a href="mailto:swift-devel@ci.uchicago.edu" target="_blank" style="color: blue; text-decoration: underline; ">swift-devel@ci.uchicago.edu</a><span class="Apple-converted-space"> </span>Devel" <<a href="mailto:swift-devel@ci.uchicago.edu" target="_blank" style="color: blue; text-decoration: underline; ">swift-devel@ci.uchicago.edu</a>>; MosaStore <<a href="mailto:mosastore@googlegroups.com" target="_blank" style="color: blue; text-decoration: underline; ">mosastore@googlegroups.com</a>><span class="Apple-converted-space"> </span><br><b>Sent:</b><span class="Apple-converted-space"> </span>Wednesday, 14 March 2012 2:00 PM<br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [Swift-devel] Mosaswift update</span><span style="color: black; "><o:p></o:p></span></div></div><p class="MsoNormal" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-top: 0cm; margin-bottom: 12pt; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; background-position: initial initial; background-repeat: initial initial; "><span style="color: black; "><br>So that actually fixed the issue. So we have a working example of using CDM and intermediate file storage that Emalayan can use for testing his mosa store set up.<br><br>On Mar 14, 2012, at 3:05 PM, Jonathan Monette wrote:<br><br>> Oh, thanks, didn't catch that. Trying another run right now but I think someone is using all of surveyor right now, but manual coaster service job is stuck in the queue state.<br>><span class="Apple-converted-space"> </span><br>><span class="Apple-converted-space"> </span><br>> On Mar 14, 2012, at 3:02 PM, Justin M Wozniak wrote:<br>><span class="Apple-converted-space"> </span><br>>><span class="Apple-converted-space"> </span><br>>> Ok, then it's a typo on readlinE .<br>>><span class="Apple-converted-space"> </span><br>>> On Wed, 14 Mar 2012, Jonathan Monette wrote:<br>>><span class="Apple-converted-space"> </span><br>>>> I am not sure. I thought readlink returned the absolute path of the link which is what I wanted to use. I am not sure how readlink behaves on the compute nodes. This was my first attempt at getting around the link but I do not think this is working.<br>>>><span class="Apple-converted-space"> </span><br>>>> On Mar 14, 2012, at 2:43 PM, Justin M Wozniak wrote:<br>>>><span class="Apple-converted-space"> </span><br>>>>> On Wed, 14 Mar 2012, Jonathan Monette wrote:<br>>>>><span class="Apple-converted-space"> </span><br>>>>>> I say semi working because I intended the script to build up output during the stages on the swift run and the final output would show that it was stored temporarily in /tmp. This is not happening as the final output for the file contains only the last line(a Hello from <id> line). I believe this is due to how CDM using symlinks for the files that is matched, so a symlink is being overwritten instead of at the file it points to. I ran into this problem in the past(but this is documented in the user guide) and just need verify that this is indeed the issue.<br>>>>><span class="Apple-converted-space"> </span><br>>>>> In the past, the application unlinked the link. It looks like you are appending to the link.<br>>>>><span class="Apple-converted-space"> </span><br>>>>> infile=`readlink $1`<br>>>>> outfile=`readline $2`<br>>>>> cat $infile >> $outfile<br>>>>><span class="Apple-converted-space"> </span><br>>>>> Is there a case in which the readlink affects the behavior of this sequence?<br>>>>><span class="Apple-converted-space"> </span><br>>>>> Does readline work correctly on the BG/P compute node?<br>>>>><span class="Apple-converted-space"> </span><br>>>>> Justin<br>>>>><span class="Apple-converted-space"> </span><br>>>>> --<br>>>>> Justin M Wozniak<br>>>><span class="Apple-converted-space"> </span><br>>>><span class="Apple-converted-space"> </span><br>>><span class="Apple-converted-space"> </span><br>>> --<span class="Apple-converted-space"> </span><br>>> Justin M Wozniak<br>><span class="Apple-converted-space"> </span><br>> _______________________________________________<br>> Swift-devel mailing list<br>><span class="Apple-converted-space"> </span><a href="mailto:Swift-devel@ci.uchicago.edu" target="_blank" style="color: blue; 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