Synopsys jumps on Nvidia's $2 billion investment
** Chip design software provider Synopsys' SNPS.O shares rise 7.8% to $450.63 premarket ** Chipmaker Nvidia invests $2 bln in SNPS at $414.79 per share ** Investment adds to NVDA's tie-ups in the AI ecosystem amid concerns about circular deals ** Up to last close, SNPS has fallen 13.9% this year (Reporting by Anhata Rooprai in Bengaluru) ((Anhata.Rooprai@thomsonreuters.com))