* Documentation, version numbers, and docker file updates. (#559)

* File creation mode should be "w" here too. Interesting, "append"
  mode causes a test failure in the Docker container, but not baremetal
  Ubuntu.

Dockerfile

@@ -1,4 +1,4 @@
-FROM underworldcode/underworld2:dev
+FROM underworldcode/underworld2:2.11.0b
 
 # Set the UW_MACHINE env variable for metrics
 ENV UW_MACHINE binder

LICENSE.md

@@ -16,9 +16,9 @@ Underworld has been in development since 2003. It has always been released under
 
 ### Copyright holders
 
-Copyright Australian National University, 2020
-Copyright Melbourne University,           2014-2020
-Copyright Monash University,              2003-2020
+Copyright Australian National University, 2020-2021
+Copyright Melbourne University,           2014-2021
+Copyright Monash University,              2003-2021
 Copyright VPAC,                           2003-2009
 
 ### References

README.md

@@ -29,18 +29,15 @@ In particular, the *Getting Started* section of the User Guide might be useful p
 Trying out Underworld2
 ----------------------
 
-You can try out the code immediately via a Jupyter Binder cloud instance. Be aware that it can take a little while for the site to fire up and that it will time-out after 30 minutes of inactivity and reset if you log back in. 
+You can try out the code immediately via a Jupyter Binder cloud instance. The Binder environment is identical to that obtained through running an Underworld Docker image locally.
+Note that it can take a while for the site to fire up and that it will time-out after 30 minutes of inactivity and reset if you log back in. 
 
 | | |
 |-|-|
-| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.10.0b) | v2.10.0b (Py3) |
-| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.9.2b) | v2.9.2b (Py3) |
-| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.8.2b) | v2.8.2b (Py3) |
-| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.7.1b) | v2.7.1b (Py2) |
-| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/development) | dev (Py3) |
-
-
-Note that the Binder environment is identical to that obtained through running an Underworld Docker image locally.
+| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.11.0b) | v2.11.0b |
+| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.10.0b) | v2.10.0b |
+| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/v2.9.2b) | v2.9.2b |
+| [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/underworldcode/underworld2/development) | dev |
 
 
 Getting Underworld2

docs/install_guides/pawsey_magnus_container.md

@@ -19,17 +19,14 @@ user@magnus-1:~$ module load singularity
 2. Pull down the required image. Note that images are generally around 1GB, so you might 
    consider storing them somewhere in `/group` or `/scratch`.
 ```shell
-user@magnus-1:~$ singularity pull /WHERE/TO/STORE/YOUR/IMAGE/IMAGENAME.sif docker://underworldcode/underworld2
+user@magnus-1:~$ singularity pull /WHERE/TO/STORE/YOUR/IMAGE/IMAGENAME.sif docker://underworldcode/underworld2:latest
 ```
 
 3. Use the image. Note that this will normally be a command line in your
    queue submission script. Don't forget to also load the Singularity module.
    Note also the setting of the environment variable `UW_VIS_PORT` which is 
    required for correct vis operation.
-   Note also that we currently need to set the `SINGULARITYENV_LD_LIBRARY_PATH`
-   variable which prevents unwanted host libraries being loaded at runtime. 
 ```shell
-user@magnus-1:~$ export SINGULARITYENV_LD_LIBRARY_PATH=/opt/cray/pe/mpt/7.7.0/gni/mpich-gnu-abi/4.9/lib:/opt/cray/xpmem/2.2.15-6.0.7.1_5.16__g7549d06.ari/lib64:/opt/cray/ugni/6.0.14.0-6.0.7.1_3.18__gea11d3d.ari/lib64:/opt/cray/udreg/2.3.2-6.0.7.1_5.18__g5196236.ari/lib64:/opt/cray/pe/pmi/5.0.13/lib64:/opt/cray/alps/6.6.43-6.0.7.1_5.54__ga796da32.ari/lib64:/opt/cray/wlm_detect/1.3.3-6.0.7.1_5.8__g7109084.ari/lib64:/usr/lib64
 user@magnus-1:~$ export UW_VIS_PORT=0
 user@magnus-1:~$ srun singularity exec /WHERE/TO/STORE/YOUR/IMAGE/IMAGENAME.sif python3 YOURSCRIPT.py
 ```
@@ -48,7 +45,6 @@ user@magnus-1:~$ module load singularity
 
 3. Launch the Singularity shell. Note the `--pty` required for pseudo terminal mode.
 ```shell
-user@magnus-1:~$ export SINGULARITYENV_LD_LIBRARY_PATH=/opt/cray/pe/mpt/7.7.0/gni/mpich-gnu-abi/4.9/lib:/opt/cray/xpmem/2.2.15-6.0.7.1_5.16__g7549d06.ari/lib64:/opt/cray/ugni/6.0.14.0-6.0.7.1_3.18__gea11d3d.ari/lib64:/opt/cray/udreg/2.3.2-6.0.7.1_5.18__g5196236.ari/lib64:/opt/cray/pe/pmi/5.0.13/lib64:/opt/cray/alps/6.6.43-6.0.7.1_5.54__ga796da32.ari/lib64:/opt/cray/wlm_detect/1.3.3-6.0.7.1_5.8__g7109084.ari/lib64:/usr/lib64
 user@magnus-1:~$ export UW_VIS_PORT=0
 user@magnus-1:~$ srun --pty  singularity shell /WHERE/TO/STORE/YOUR/IMAGE/IMAGENAME.sif
 ```

underworld/_version.py

@@ -1 +1 @@
-__version__ = "2.11.0-dev"
+__version__ = "2.11.0b"

underworld/swarm/_swarmvariable.py

@@ -440,8 +440,7 @@ def save( self, filename, collective=False, swarmHandle=None, units=None, **kwar
         for i in range(comm.rank):
             offset += procCount[i]
 
-        # open parallel hdf5 file
-        with h5File(name=filename, mode="a") as h5f:
+        with h5File(name=filename, mode="w") as h5f:
             # write the entire local swarm to the appropriate offset position
             globalShape = (particleGlobalCount, self.data.shape[1])
             dset = h5_require_dataset(h5f, "data", shape=globalShape, dtype=self.data.dtype)