Differences

This shows you the differences between two versions of the page.

--- community:hepsim:usage_download [2016/09/17 11:53] – asc
+++ community:hepsim:usage_download [2016/10/12 20:59] (current) – [Downloading truth-level files] asc
@@ Line 3: / Line 3: @@
 ======  How to download, view and find data ======
-======  Data formats ======
+======  EVGEN events ======
 Truth-level (EVGEN) data are stored in a platform-independent format called [[http://atlaswww.hep.anl.gov/asc/promc/ | ProMC]] that allows very effective compression using a variable-byte encoding.  This data format is
 supported by popular programming languages (C++, Java, Python) on major  operating system (Windows, Mac, Linux, etc.).
@@ Line 228: / Line 228: @@
 hs-get tev100_higgs_ttbar_mg5 data
 </code>
+You will be prompted to use certain mirror (if there are alternative mirrors). Select the mirror and start downloading the files.
 Alternatively, this example downloads files using the URL of the Info page:
 <code bash>
@@ Line 236: / Line 238: @@
 hs-get http://mc.hep.anl.gov/asc/hepsim/events/pp/100tev/higgs_ttbar_mg5 data
 </code>
 All these examples will download all files from the "tev100_higgs_ttbar_mg5" event sample.
+<note important>If you see that the download is slow, use an alternative URL from the mirror list which is given for each dataset.
+</note>
 You can stop downloading using [Ctrt-D]. Next time you start it, it will continue the download.
@@ Line 296: / Line 300: @@
 hs-get  tev100_ttbar_mg5%rfast001 data 3 10
 </code>
-As before, one can also download the files using the URL:
+As before, one can also download the files using the URL approach:
 <code bash>
 hs-ls http://mc.hep.anl.gov/asc/hepsim/events/pp/100tev/ttbar_mg5/rfast001/ # list all files
 hs-get http://mc.hep.anl.gov/asc/hepsim/events/pp/100tev/ttbar_mg5/rfast001/ data
 </code>
+Note that the reconstruction tag "rfast001" is separated by backslash as for the usual directory.
+As before, the URL can be taken from the list with mirrors. For example, if you want to download  files from Nersc, use this URL:
+<code bash>
+hs-ls  http://portal.nersc.gov/project/m1758/data/events/pp/100tev/ttbar_mg5/rfast001/ # list all files
+hs-get http://portal.nersc.gov/project/m1758/data/events/pp/100tev/ttbar_mg5/rfast001/ data
+</code>