By Reuters
Publication Date: 2026-04-15 10:05:00
SAN FRANCISCO, April 15 (Reuters) – U.S. Democratic Senator Elizabeth Warren sent a letter to the U.S. secretaries of the Department of Energy and Department of Defense on Tuesday, questioning them about Nvidia’s acquisition of SchedMD, which makes Slurm software.
Warren’s letter to Energy Department Secretary Chris Wright and Defense Department Secretary Pete Hegseth expressed worries about Nvidia’s acquisition of SchedMD and requested “information about the government’s dependency on NVIDIA hardware and software.”
Nvidia bought the Slurm software developer SchedMD in December. The software helps power about 60% of supercomputers worldwide. Nvidia did not disclose the size of the transaction.
SchedMD and Slurm are not household names. But the deal follows a pattern of Nvidia targeting under-the-radar companies whose technology serves as the glue holding the world’s most powerful data centers and supercomputers together.
In the letter, which was seen by Reuters, Warren asked for information about the extent to which computer systems in the U.S. departments of Energy and Defense are dependent on Nvidia’s hardware and software products. Warren asked whether either department has assessed national security risks related to the SchedMD acquisition.
“Customers everywhere benefit from our open source and free software,” Nvidia said in a statement. “Slurm is open-source and we continue to provide enhancements for everyone.”
The SchedMD -…