Table 1.

Computational requirements

Method	Time per iteration (min : s)	Memory per node
	250 000 variables
glmnet	2 : 20	46 GB
gpu-lasso (1 CPU)	0 : 54	415 MB
gpu-lasso (1 GPU)	0 : 1.85	415 MB
gpu-lasso (2 GPU)	0 : 0.93	208 MB
	1 million variables
glmnet	NA	NA
gpu-lasso (1 CPU)	3 : 47	1.7 GB
gpu-lasso (1 GPU)	0 : 7.7	1.7 GB
gpu-lasso (2 GPU)	0 : 3.8	863 MB

A total of 7000 subjects in all analyses.