CCL: Illegal Instruction on AMD CPUs

I was trying to use the 1.0.0 version of ccl on a centOS cluster. I’m using an anaconda environment with python 3. I installed cmake and swig from using conda and then installed pyccl from pip - all on the login node of this cluster. I can import pyccl in python without a problem on this node:

(base) nbhandar@coma Fisher (naren) λ conda activate ccl3
(ccl3) nbhandar@coma Fisher (naren) λ python
Python 3.7.4 (default, Aug 13 2019, 20:35:49)
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyccl
>>> quit()
(ccl3) nbhandar@coma Fisher (naren) λ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                16
On-line CPU(s) list:   0-15
Thread(s) per core:    1
Core(s) per socket:    8
CPU socket(s):         2
NUMA node(s):          2
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 45
Stepping:              7
CPU MHz:               1999.923
BogoMIPS:              3999.44
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              20480K
NUMA node0 CPU(s):     0,2,4,6,8,10,12,14
NUMA node1 CPU(s):     1,3,5,7,9,11,13,15

However on certain compute nodes, namely the ones running AMD cpus, I get an illegal instruction error when trying to import pyccl in python, and python crashes

(base) nbhandar@compute-2-6 Fisher (naren) λ conda activate ccl3
(ccl3) nbhandar@compute-2-6 Fisher (naren) λ python
Python 3.7.4 (default, Aug 13 2019, 20:35:49)
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyccl
Illegal instruction
(ccl3) nbhandar@compute-2-6 Fisher (naren) λ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                16
On-line CPU(s) list:   0-15
Thread(s) per core:    1
Core(s) per socket:    8
CPU socket(s):         2
NUMA node(s):          4
Vendor ID:             AuthenticAMD
CPU family:            16
Model:                 9
Stepping:              1
CPU MHz:               2400.143
BogoMIPS:              4800.46
Virtualization:        AMD-V
L1d cache:             64K
L1i cache:             64K
L2 cache:              512K
L3 cache:              5118K
NUMA node0 CPU(s):     0,2,4,6
NUMA node1 CPU(s):     8,10,12,14
NUMA node2 CPU(s):     9,11,13,15
NUMA node3 CPU(s):     1,3,5,7

On the compute nodes with Intel cpus, I do not get this error:

(base) nbhandar@compute-1-17 Fisher (naren) λ conda activate ccl3
(ccl3) nbhandar@compute-1-17 Fisher (naren) λ python
Python 3.7.4 (default, Aug 13 2019, 20:35:49)
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyccl
>>> quit()
(ccl3) nbhandar@compute-1-17 Fisher (naren) λ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                16
On-line CPU(s) list:   0-15
Thread(s) per core:    1
Core(s) per socket:    8
CPU socket(s):         2
NUMA node(s):          2
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 63
Stepping:              2
CPU MHz:               2400.043
BogoMIPS:              4799.33
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              20480K
NUMA node0 CPU(s):     0,2,4,6,8,10,12,14
NUMA node1 CPU(s):     1,3,5,7,9,11,13,15