Differences

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--- other:uvcdat:cdat_conda:cdat_8_2_1 [2021/03/03 12:40] – [Installing CDAT 8.2.1] jypeter
+++ other:uvcdat:cdat_conda:cdat_8_2_1 [2021/03/03 16:39] – [Packages that have no dependency problems] jypeter
@@ Line 102: / Line 102: @@
 [[https://github.com/CDAT/cdat/issues/2265|Some extra installation notes]]
-===== Cloning CDAT before adding specific packages for LSCE =====
+===== Cloning the base CDAT environment before adding specific packages for LSCE =====
 <WRAP center round alert 60%>
@@ Line 118: / Line 118: @@
 Notes:
-  * Why //cloning//? The initial CDAT environment is strictly the one created at PCMDI and certified by PCMDI. Rather than making changes directly in there, we keep it as it is, clone it, and work on the clone
+  * Why //cloning//? The initial CDAT environment is strictly the one created at PCMDI and certified by PCMDI. Rather than making changes directly in there, we keep it as it is, clone it, and make changes in the cloned environment
-  * Carefully working on different python environments (possibly cloned) is safer in a multi-user environment
+  * Carefully working on different python environments (possibly cloned) is safer in a multi-user environment (i.e. you can have people use a specific environment, and make tests in another environment)
   * Cloning a full environment uses Linux hard links and  requires less disk space than making a real copy
@@ Line 132: / Line 132: @@
-===== Getting ready for a moving default CDAT =====
+===== Getting ready for a moving default CDAT environment =====
 <WRAP center round alert 60%>
@@ Line 143: / Line 143: @@
 This step could probably be listed at the **end**, especially in a multi-user environment!
-If there is already a ''cdatm_py3'' link, make sure that the new CDAT version is stable and working correctly before updating the ''cdatm_py3'' link
+If there is already a ''cdatm_py3'' link (pointing to an older environment), make sure that the new CDAT environment is stable and working correctly before updating the ''cdatm_py3'' link
 </WRAP>
-We create a **//cdatm_py3// symbolic link** in the ''envs'' directory, that has a //stable name// but can be moved to point to the latest default (and hopefully stable) CDAT. In that case, most users can just activate this //cdatm_py3// version and always get the latest stable version
+We create a **//cdatm_py3// symbolic link** in the ''envs'' directory, that has a //stable name// but can be moved to point to the latest default (and hopefully stable) CDAT environment. In that case, most users can just activate this //cdatm_py3// environment and always get the latest stable version.
 <code>$ cd /home/share/unix_files/cdat/miniconda3_21-02/envs
-$ ln -s cdatm19_py3 cdatm_py3</code>
+$ ln -s cdatm19_py3 cdatm_py3
+conda env list
+# conda environments:
+#
+base                  *  /home/share/unix_files/cdat/miniconda3_21-02
+cdat-8.2.1_py3           /home/share/unix_files/cdat/miniconda3_21-02/envs/cdat-8.2.1_py3
+cdatm19_py3              /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_py3
+cdatm_py3                /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm_py3
+$ ls -l /home/share/unix_files/cdat/miniconda3_21-02/envs/
+drwxr-xr-x [...] cdat-8.2.1_py3/
+drwxr-xr-x [...] cdatm19_py3/
+lrwxrwxrwx [...] cdatm_py3 -> cdatm19_py3/
+</code>
 ===== Customizing UV-CDAT for LSCE =====
@@ Line 160: / Line 174: @@
 ==== Downloading cdms2/vcs test data ====
-You should download the test data (174M of data...) and use it in the example scripts that you want to distribute, and scripts you write for reporting the errors you find (if any...)
+You should download the test data (174M of data...) and use it in the example scripts that you want to distribute, and scripts you write for reporting the errors you find (if any...). The downloaded data files will be available in: ''vcs.sample_data''
 <code>$ conda activate cdatm19_py3
@@ Line 170: / Line 184: @@
 (cdatm19_py3) $ du -sh /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_py3/share/cdat/sample_data
 M    /home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm19_py3/share/cdat/sample_data
-</code>
+$ python
+>>> import os, vcs
+>>> vcs.sample_data
+'/home/jypeter/miniconda3_21-02/envs/cdat-8.2.1_py3/share/cdat/sample_data'
+>>> os.listdir(vcs.sample_data)
+['BlueMarble.ppm', 'clt.nc', 'geo.1deg.ctl', 'geo.1deg.gmp', 'geo.1deg.grb', ...]</code>
 ==== Packages that have no dependency problems ====
-After cloning, we are ready to install some extra packages that may be requested by LSCE users
+After [[#cloning_the_base_cdat_environment_before_adding_specific_packages_for_lsce|cloning]], we are ready to install some extra packages that may be requested by LSCE users
   * We first try to install together as many packages as possible that don't require other channels than //conda-forge//, and that don't request a downgrade of what is already installed