It uses the *shahzebsiddiqui/eb-singularity:centos-7.4.1708* base container image that is available from Singularity hub ([see](https://singularity-hub.org/collections/143)).
It uses the *shahzebsiddiqui/eb-singularity:centos-7.4.1708* base container image that is available from Singularity hub ([see][c].
```
Bootstrap: shub
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@@ -210,7 +210,7 @@ For Singularity containers (see Type of container recipe/image to generate (`--c
* ext3: writable image file using ext3 file system
* sandbox: container image in a regular directory
[See also](https://singularity.lbl.gov/user-guide#supported-container-formats and http://singularity.lbl.gov/docs-build-container).
See also [link][d][link][e].
## Name for Container Recipe & Image
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@@ -232,13 +232,22 @@ The container software that EasyBuild leverages to build container images may be
You can instruct EasyBuild to pass an alternate location via the `--container-tmpdir` configuration setting.
For Singularity, the default is to use /tmp, [see](http://singularity.lbl.gov/build-environment#temporary-folders). If `--container-tmpdir` is specified, the `$SINGULARITY_TMPDIR` environment variable will be defined accordingly to let Singularity use that location instead.
For Singularity, the default is to use /tmp, [see][f]. If `--container-tmpdir` is specified, the `$SINGULARITY_TMPDIR` environment variable will be defined accordingly to let Singularity use that location instead.
Type of container recipe/image to generate (`--container-type`)
With the `--container-type` configuration option, you can specify what type of container recipe/image EasyBuild should generated. Possible values are:
[Singularity](http://singularity.lbl.gov/) enables users to have full control of their environment. A non-privileged user can "swap out" the operating system on the host for one they control. So if the host system is running RHEL6 but your application runs in Ubuntu/RHEL7, you can create an Ubuntu/RHEL7 image, install your applications into that image, copy the image to another host, and run your application on that host in it’s native Ubuntu/RHEL7 environment.
[Singularity][a] enables users to have full control of their environment. A non-privileged user can "swap out" the operating system on the host for one they control. So if the host system is running RHEL6 but your application runs in Ubuntu/RHEL7, you can create an Ubuntu/RHEL7 image, install your applications into that image, copy the image to another host, and run your application on that host in it’s native Ubuntu/RHEL7 environment.
Singularity also allows you to leverage the resources of whatever host you are on. This includes HPC interconnects, resource managers, file systems, GPUs and/or accelerators, etc. Singularity does this by enabling several key facets:
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@@ -13,7 +13,7 @@ This documentation is for Singularity version 2.4 and newer.
## Using Docker Images
Singularity can import, bootstrap, and even run Docker images directly from [Docker Hub](https://hub.docker.com/). You can easily run RHEL7 container like this:
Singularity can import, bootstrap, and even run Docker images directly from [Docker Hub][b]. You can easily run RHEL7 container like this:
```console
hra0031@login4:~$cat /etc/redhat-release
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@@ -115,4 +115,8 @@ Singularity ubuntu.img:~> ls /scratch
ddn sys temp work
```
Comprehensive documentation can be found at the [Singularity](http://singularity.lbl.gov/quickstart) website.
\ No newline at end of file
Comprehensive documentation can be found at the [Singularity][c] website.
Spack is a package manager for supercomputers, Linux, and macOS. It makes installing scientific software easy. With Spack, you can build a package with multiple versions, configurations, platforms, and compilers, and all of these builds can coexist on the same machine.
Homepage is at [https://spack.io/](https://spack.io/)
Homepage is [here][a].
Documentation is at [https://spack.readthedocs.io/en/latest/](https://spack.readthedocs.io/en/latest/)
