testlist <- list(ext = c(6.27307956509753e-64, 2.62033154977171e+281, 1.89714284010832e-146,  -9111392504163.66, -1.96100329779194e+235, 3.36093966839059e+56,  -1.4484807085997e-148, -1.57195458990999e+212, -218.297300103767,  2.65579861674862e+162, -4.86558902515099e-123, -3.51101104382789e-184,  7.29904790030444e-280, 2.73467370618567e-158, -1.02612434674069e+287,  -5.1532180703756e+282, 3.49731047819226e-93, -4.15183688077789e+37,  -7.05736083608185e-71, 1.15960508902993e-174, 1.28765981944741e+65,  -1.00878821969974e-122, 1.59867710497547e-301, -1.20922993461372e-150,  -1.52474113900738e+160, 3.0630849294749e-09, 1.23620488372953e+58,  1.1853889057908e-58, -2.57986361504323e+277, 1.64435188141401e-176,  -Inf, 3.00430138794836e-286, NaN, -7.98178854985882e+72, 2.19750543304083e-52,  -3.43721221554487e-32, -1.24573261840552e-84, -0.00338325949011116,  -5.50126771766368e+303, 1.3056450257234e+166, -2.63091469888491e+305,  -3.50842683977744e-207, 7.91178599407733e+250, -2.41313173573323e-49,  6.54233479584938e+182, 8.73967702366444e-20, -8.26281290896066e+218,  -1.18347002733684e-112, 2.02175512864368e+261, -7.60806642864442e+99,  -2.29965659520996e+35, 1.70126254766359e+166, 9.86056908203684e+133,  -7.96925273803086e+273, 2.88777386075226e+167, 2.0710629915706e+248,  7.0744194085847e+64, 5.32539315642724e+291, -5.79622556321185e-127,  6.18447248143194e-150, 1.21616268629118e+64, 7.62912854460882e-30,  -3.31407767329902e+285, 3.27940946579804e-160, 1.01621262338936e+66,  -7.00133578355838e+277, -1.256176881046e-114, 8.44931657828342e+120,  1.73843340095874e-48, 9.73711313773686e-46, -5.50126771766368e+303,  1.77808059078961e-09, -8.98931846038647e+227, NaN, 9.1809563679378e-185,  9.36967345237794e+217, -2.23258818721822e+86, -7.0291170647403e+68,  1.08921936861037e+277, 1.34832735132472e-192, 0), group = c(3.2107092151198e-85,  5.91671073252358e+42, -3.32925549847815e-127, 6.37224165437576e-131,  Inf, 1.88350021343911e+262, -6.19970605599364e+261, -8.80836049610896e+111,  NaN, 2.15015167924862e-283, -1.54356159990322e-283, -Inf, NA,  5.60718669923281e+141, 3.21330099110344e+244, 1.87565073821357e-218,  12189275431459378, 3.18631576954318e-215, 62943363292205040,  3.14520776351277e-259, 1.83218392068871e+122, -5.40644250594226e+164,  -2.6036204579044e-256, -2.42000454288667e+119, 5.00515922485668e-185,  0), m = structure(c(3.34887848661197e-186, 1.75052975604566e+121,  4.89208437196252e-210, 2.45161104517345e-175, 9.73469659642225e+74,  8.95966852801257e-80, 1.16936365184005e+230, 7.72106711633317e+187,  1.26442650621153e-153, 1.77077875622316e-273, 2.40484860883643e-287,  4.14895979992954e-26, 7.3394296503405e+288, 2.5453944598674e-261,  2.11096427631879e+173, 5.65555830046261e+32, 4.04789775094963e-279,  3.76887815294257e+81, 7.91463726047544e-214, 8.7739133442128e-111,  3.4770950125295e+22), .Dim = c(7L, 3L)), v = c(-1.3154797303009e-25,  1.45470904427654e+277, 7.28437453559366e+272, -4.52475784560737e-175,  -5.25045663587824e+186, 7.92834052864775e-106, 2.10525643988547e+169,  -6.79032792342675e-207, -2.35213817006946e+271, 1.28131926094927e-47,  -4.40094159489654e-236, -2.57853678304497e+228, 1.73178504307145e-73,  NA, 5.33295545213577e+217, 2.66514325153828e+83, -3.91076831866042e-160,  2.66164542195663e+210, -7.10061864959103e+178, 2.07149196213265e+65,  4.75689842350387e-194, -2.54751305781607e+116, -1.90966805998297,  -8.73439184825941e-49, -8.46598237502785e-300, -1.72162011865607e-77,  -2.6181498184575e+145, -1.15890430516728e-234, 8.33102582571371e+267,  -2.18251337822751e-141, NaN, 4.09786077220707e+179, 3.20318183363305e+115,  0.000613706947451453, -5.13642808799832e-173, -3.99943493078429e+170,  1.92809555926246e-72, NaN, -2.38501435308575e+209, 2.99479937536883e-65,  -2.51857118743402e+188, 2.40665045617775e+111, 0))
result <- do.call(PanelCount:::matVecProdSum,testlist)
str(result)