scanpy scaling issue

gen_h5ad.py

import matplotlib
matplotlib.use('Agg')  # plotting backend compatible with screen
import scanpy.api as sc
from argparse import ArgumentParser

sc.settings.verbosity = 4  # show logging output

def main():
    parser = ArgumentParser(
        description="Reads in 10x hdf5 file and write a h5ad file.")
    parser.add_argument("inpth",
                        help="10x hdf5 file to read.")
    parser.add_argument("outpth",
                        help="Path to write h5ad file to.")
    args = parser.parse_args()
    sc.logging.print_versions()
    sc.logging.print_memory_usage()
    adata = sc.read_10x_h5(args.inpth)
    sc.logging.print_memory_usage()
    adata.write(args.outpth)


if __name__ == "__main__":
    main()

load_anndata.py

import matplotlib
matplotlib.use('Agg')  # plotting backend compatible with screen
import sys
import scanpy.api as sc

sc.settings.verbosity = 4  # show logging output

def main():
    filename = sys.argv[1]
    sc.logging.print_versions()
    sc.logging.print_memory_usage()
    adata = sc.read(filename)
    sc.logging.print_memory_usage()


if __name__ == "__main__":
    main()