Charlie Moir, who had the most victories of any basketball coach in Virginia Tech history, has resigned, a university official said.

The Roanoke Times & World-News reported in today's editions that Moir signed a settlement agreement on the final two years of his five-year contract yesterday in Kansas City, Mo., where he and other Virginia Tech officials appeared at an NCAA infractions committee hearing.

Ray Smoot, university treasurer and interim athletic director, said he and President William Lavery also signed the settlement agreement, which seals Moir's resignation.

"There's an understanding . . . that the agreement will not be discussed," Smoot said. Moir's attorney, S.D. Roberts Moore, would not reveal the buyout terms last night. Upon his arrival in Roanoke from Kansas City late last night, Moir was asked to describe his feelings about leaving the job after 11 seasons and six months of investigations. "Relieved," he replied.

On Thursday, a source close to Moir told the newspaper that the worth of the settlement was about $250,000, which would approximate the final two years of salary and benefits on the contract.

Smoot said the Hokies will select an interim coach "soon, but not necessarily today" to replace Moir, who guided Tech to 213 wins in 11 seasons.

A likely candidate is Frankie Allen, 38, who has been a Virginia Tech assistant coach since Moir arrived at the school in March 1976 . . .

Douglas Single, who seven years ago became the youngest major college athletic director in the country, was hired to head the beleaguered athletic department at Southern Methodist University.

"Our first victories will come in the classroom," said Single, former athletic director at Northwestern. "I know that in 1989 we will not challenge for the Cotton Bowl. But when the wins come, and they will eventually come in bunches, there will be a feeling on this campus that they have been obtained in the right way."

SMU has been without an athletic director since last December, when Bob Hitch resigned in the wake of allegations of cash payments being made to football players. Two months later, the NCAA suspended SMU's football program for the 1987 season and placed such severe sanctions on the 1988 season that the school canceled it as well.