4. News & Events
General information about the Maintenance is applicable to all scheduled downtime periods.
Any additional information is outlined in notification emails to hpc-users@uci.edu (all current users) and is described in the details below.
When the maintenance is completed all users are notified via emails to hpc-users@uci.edu.
4.1. July, 2025
- Maintenance Items:
OS version update from Rocky 8.10 to Rocky 9.
Top-to-bottom re-installation of all compute and login nodes.
Full rebuild of all applications software, see table below for software changes.
Full rebuild of Slurm software.
- Impacts:
This is a full outage.
All existing logins will be terminated.
You will NOT have access to HPC3 during the planned downtime.
You will have access to CRSP using Web based File browser or CRSP Desktop App.
No Slurm jobs can run or can be pending in the queue.
All jobs remaining in the queue on the maintenance day will be terminated.
Slurm jobs that are not guaranteed (via TimeLimit) to complete before 8am on the day of maintenance will need to be resubmitted after the maintenance. Please see requesting time limits on queues.
- Software changes:
The operating system update involves many changes across the software stack. While we try to build all the previous software versions for the new OS, some builds are impossible. As a result, some modules will be removed because they cannot be built on a new system or because the underlying requirements are no longer satisfied.
Note, the table below will be periodically updated till the maintenance date.
Table 4.1 Software changes Module name
Comments
Removed modules
bcftools/1.10.2
Cannot build, use newer version
bustools/0.40.0
Unused, use newer version
canu/2.0
Unused
charm/6.10.1/gcc.11.2.0
Unused
charm/6.10.1/gcc.11.2.0-openmpi.5.0.1
Unused
charm/7.0.0/gcc.11.2.0
Unused
cuda/10.1.243
Not supported on Rocky 9, use newer version
gatk/4.1.9.0
Security vulnerability, use newer version
gromacs/2021.2/gcc.8.4.0-cuda.10.1.243.openmpi.4.0.3
Unused
gromacs/2022.1/gcc.8.4.0-openmpi.4.1.2
Unused
intel/2020u1
Intel compiler deoends upon a shared library that is unavailable on Rocky 9.
Removed affected modules:
mpich/3.4/intel.2020u1
openmpi/4.0.3/intel.2020u1
hdf5/1.10.5/intel.2020u1
ioapi/3.2/intel.2020u1
netcdf-c/4.7.0/intel.2020u1 (including dependent netcdf-f version 4.5.2)
Use modules with newer intel compier where available
ioapi/3.2/gcc.11.2.0
Unused
petsc/3.20.1/gcc.11.2.0
petsc/3.20.1/gcc.11.2.0-cuda.11.7.1
Unused
Unused
protobuf/3.11.4
protobuf/3.19.4
Unused
Unused
R/4.1.2
Seurat and leiden libraries cannot be built. Use newer R if you need these specific packages.
R/4.2.2
Seurat and leiden libraries cannot be built. Use newer R if you need these specific packages.
salmon/1.2.1
Cannot build, use newer version
tensorflow/2.0.0
Cannot build, use newer version
tensorRT/6.0.1.5
Cannot build, use newer version
tk/8.6.12
Unused. Functionality is provided by tcl/8.6.12
Updated modules
CUDA 10 compiled modules:
gromacs/2020.4/gcc.8.4.0-cuda.10.1.243
gromacs/2021.2/gcc.8.4.0-cuda.10.1.243
gromacs/2021.2/gcc.8.4.0-cuda.10.1.243.openmpi.4.0.3
namd/2.14b2/gcc.8.4.0-cuda.10.1.243
Replaced by CUDA 11 compiled modules:
gromacs/2020.4/gcc.8.4.0-cuda.11.7.1
gromacs/2021.2/gcc.8.4.0-cuda.11.7.1
gromacs/2021.2/gcc.8.4.0-cuda.11.7.1.openmpi.4.0.3
namd/2.14b2/gcc.8.4.0-cuda.11.7.1
gcc/<any version>
No longer provides go. To use go please load module go/1.22.3
gcc/system
System compiler is updated to version 11.5.0.
Modules compiled with system compiler:
openmpi/4.1.1/gcc.system
ucx/1.8.0/gcc.system
ucx/1.12.0/gcc.system
ucx/1.15.0/gcc.system
fftw/3.3.8/gcc.system
hdf5/1.10.5/gcc.system
hdf5/1.13.1/gcc.system
hdf5/1.13.1/gcc.system-openmpi.4.1.1
gdal/3.1.0
gdal/3.4.1
gdal/3.6.2
Replaced by gdal/3.1.0/gcc.8.4.0
Replaced by gdal/3.4.1/gcc.11.2.0
Replaced by gdal/3.6.2/gcc.11.2.0
geos/3.8.1
geos/3.10.2
geos/3.11.1
Replaced by geos/3.8.1/gcc.8.4.0
Replaced by geos/3.10.2/gcc.11.2.0
Replaced by geos/3.11.1/gcc.11.2.0
intel-tbb/2021.5.0
Replaced by intel-tbb/2021.11
mpich/4.0/gcc.11.2.0
Replaced by mpich/4.0/gcc.system
proj/6.3.2
proj/9.0.0
proj/9.1.1
Replaced by proj/6.3.2/gcc.8.4.0
Replaced by proj/9.0.0/gcc.11.2.0
Replaced by proj/9.1.1/gcc.11.2.0
sqlite3/3.32.3
sqlite3/3.38.2
sqlite3/3.41.0
Replaced by sqlite3/3.32.3/gcc.8.4.0
Replaced by sqlite3/3.38.2/gcc.11.2.0
Replaced by sqlite3/3.41.0/gcc.11.2.0
R/4.3.3
Updated packages:
Seurat to version 5.3.0
SeuratObject to version 5.0.2
replace leiden by leidenbase
R/4.4.2
Updated packages:
Seurat to version 5.3.0
SeuratObject to version 5.0.2
replace leiden by leidenbase
New modules
gatk/4.6.2.0
Added
hdf5/1.14.1/gcc.11.2.0-openmpi.5.0.1
Added
intel-tbb/2022.1
Added (part of intel 2025 compiler)
intel/2025.1.0
Added
- After the maintenance:
User compiled and installed software will need to be reinstalled.
User installed conda environments will VERY LIKELY need to be reinstalled.
If you previously used a module that has been removed, try to use a newer version of it where available.