What is "qumri"

Abu Mansur Hasan ibn Nuh Qumri was a Persian physician of the 10th century who lived in Khorasan. Qumri was the teacher of Avicenna. He was court physician to the Samanid prince al-Mansur, to whom he dedicated the only treatise by him that is preserved: the Kitab al-Ghina wa-al-Muna (The Book of Wealth and Wishes), which was also known as al-Shamsiyah al-mansuriyah (The Mansurian Sunshade) after its dedicatee. Little else in known of his life except that he died shortly after 990.